Home / 15,895.20-21,934.16-9,177.76

Finding the Fourth Proportional to 15,895.20, 21,934.16 and 9,177.76

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Solution

The fourth proportional to 15,895.20, 21,934.16 and 9,177.76 is: 12,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.20 : 21,934.16 = 9,177.76 : x
  2. Step 2: Convert to fraction form
    15,895.20/21,934.16 = 9,177.76/x
  3. Step 3: Cross multiply
    15,895.20x = 21,934.16 × 9,177.76
  4. Step 4: Simplify right side
    15,895.20x = 201,306,456.28
  5. Step 5: Solve for x
    x = 201,306,456.28/15,895.20
  6. Step 6: Final answer
    x = 12,664.61

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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.