Home / 15,414.40-21,272.07-9,743.24

Finding the Fourth Proportional to 15,414.40, 21,272.07 and 9,743.24

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Solution

The fourth proportional to 15,414.40, 21,272.07 and 9,743.24 is: 13,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.40 : 21,272.07 = 9,743.24 : x
  2. Step 2: Convert to fraction form
    15,414.40/21,272.07 = 9,743.24/x
  3. Step 3: Cross multiply
    15,414.40x = 21,272.07 × 9,743.24
  4. Step 4: Simplify right side
    15,414.40x = 207,258,798.56
  5. Step 5: Solve for x
    x = 207,258,798.56/15,414.40
  6. Step 6: Final answer
    x = 13,445.79

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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.