Home / 15,970.32-22,050.92-9,691.20

Finding the Fourth Proportional to 15,970.32, 22,050.92 and 9,691.20

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Solution

The fourth proportional to 15,970.32, 22,050.92 and 9,691.20 is: 13,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,970.32 : 22,050.92 = 9,691.20 : x
  2. Step 2: Convert to fraction form
    15,970.32/22,050.92 = 9,691.20/x
  3. Step 3: Cross multiply
    15,970.32x = 22,050.92 × 9,691.20
  4. Step 4: Simplify right side
    15,970.32x = 213,699,875.90
  5. Step 5: Solve for x
    x = 213,699,875.90/15,970.32
  6. Step 6: Final answer
    x = 13,381.06

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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.