Home / 13,178.38-18,184.19-7,513.62

Finding the Fourth Proportional to 13,178.38, 18,184.19 and 7,513.62

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Solution

The fourth proportional to 13,178.38, 18,184.19 and 7,513.62 is: 10,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.38 : 18,184.19 = 7,513.62 : x
  2. Step 2: Convert to fraction form
    13,178.38/18,184.19 = 7,513.62/x
  3. Step 3: Cross multiply
    13,178.38x = 18,184.19 × 7,513.62
  4. Step 4: Simplify right side
    13,178.38x = 136,629,093.67
  5. Step 5: Solve for x
    x = 136,629,093.67/13,178.38
  6. Step 6: Final answer
    x = 10,367.67

Related Problems

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Half scale
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Double scale
Find fourth proportional to 13,179.38, 18,185.57 and 7,514.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.