Home / 15,932.46-21,985.11-9,217.02

Finding the Fourth Proportional to 15,932.46, 21,985.11 and 9,217.02

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Solution

The fourth proportional to 15,932.46, 21,985.11 and 9,217.02 is: 12,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.46 : 21,985.11 = 9,217.02 : x
  2. Step 2: Convert to fraction form
    15,932.46/21,985.11 = 9,217.02/x
  3. Step 3: Cross multiply
    15,932.46x = 21,985.11 × 9,217.02
  4. Step 4: Simplify right side
    15,932.46x = 202,637,198.57
  5. Step 5: Solve for x
    x = 202,637,198.57/15,932.46
  6. Step 6: Final answer
    x = 12,718.51

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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.