Home / 15,539.68-21,419.76-10,502.32

Finding the Fourth Proportional to 15,539.68, 21,419.76 and 10,502.32

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Solution

The fourth proportional to 15,539.68, 21,419.76 and 10,502.32 is: 14,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.68 : 21,419.76 = 10,502.32 : x
  2. Step 2: Convert to fraction form
    15,539.68/21,419.76 = 10,502.32/x
  3. Step 3: Cross multiply
    15,539.68x = 21,419.76 × 10,502.32
  4. Step 4: Simplify right side
    15,539.68x = 224,957,173.84
  5. Step 5: Solve for x
    x = 224,957,173.84/15,539.68
  6. Step 6: Final answer
    x = 14,476.31

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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.