Home / 15,400.23-21,248.68-9,350.32

Finding the Fourth Proportional to 15,400.23, 21,248.68 and 9,350.32

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Solution

The fourth proportional to 15,400.23, 21,248.68 and 9,350.32 is: 12,901.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.23 : 21,248.68 = 9,350.32 : x
  2. Step 2: Convert to fraction form
    15,400.23/21,248.68 = 9,350.32/x
  3. Step 3: Cross multiply
    15,400.23x = 21,248.68 × 9,350.32
  4. Step 4: Simplify right side
    15,400.23x = 198,681,957.58
  5. Step 5: Solve for x
    x = 198,681,957.58/15,400.23
  6. Step 6: Final answer
    x = 12,901.23

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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.