Home / 15,932.12-21,982.70-9,217.58

Finding the Fourth Proportional to 15,932.12, 21,982.70 and 9,217.58

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Solution

The fourth proportional to 15,932.12, 21,982.70 and 9,217.58 is: 12,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.12 : 21,982.70 = 9,217.58 : x
  2. Step 2: Convert to fraction form
    15,932.12/21,982.70 = 9,217.58/x
  3. Step 3: Cross multiply
    15,932.12x = 21,982.70 × 9,217.58
  4. Step 4: Simplify right side
    15,932.12x = 202,627,295.87
  5. Step 5: Solve for x
    x = 202,627,295.87/15,932.12
  6. Step 6: Final answer
    x = 12,718.16

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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.