Home / 14,193.52-21,290.27-5,431.12

Finding the Fourth Proportional to 14,193.52, 21,290.27 and 5,431.12

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Solution

The fourth proportional to 14,193.52, 21,290.27 and 5,431.12 is: 8,146.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,193.52 : 21,290.27 = 5,431.12 : x
  2. Step 2: Convert to fraction form
    14,193.52/21,290.27 = 5,431.12/x
  3. Step 3: Cross multiply
    14,193.52x = 21,290.27 × 5,431.12
  4. Step 4: Simplify right side
    14,193.52x = 115,629,918.33
  5. Step 5: Solve for x
    x = 115,629,918.33/14,193.52
  6. Step 6: Final answer
    x = 8,146.67

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.