Home / 13,152.76-18,150.74-7,184.36

Finding the Fourth Proportional to 13,152.76, 18,150.74 and 7,184.36

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Solution

The fourth proportional to 13,152.76, 18,150.74 and 7,184.36 is: 9,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.76 : 18,150.74 = 7,184.36 : x
  2. Step 2: Convert to fraction form
    13,152.76/18,150.74 = 7,184.36/x
  3. Step 3: Cross multiply
    13,152.76x = 18,150.74 × 7,184.36
  4. Step 4: Simplify right side
    13,152.76x = 130,401,450.43
  5. Step 5: Solve for x
    x = 130,401,450.43/13,152.76
  6. Step 6: Final answer
    x = 9,914.38

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Half scale
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Double scale
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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.