Home / 15,472.53-21,352.19-8,398.95

Finding the Fourth Proportional to 15,472.53, 21,352.19 and 8,398.95

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Solution

The fourth proportional to 15,472.53, 21,352.19 and 8,398.95 is: 11,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.53 : 21,352.19 = 8,398.95 : x
  2. Step 2: Convert to fraction form
    15,472.53/21,352.19 = 8,398.95/x
  3. Step 3: Cross multiply
    15,472.53x = 21,352.19 × 8,398.95
  4. Step 4: Simplify right side
    15,472.53x = 179,335,934.21
  5. Step 5: Solve for x
    x = 179,335,934.21/15,472.53
  6. Step 6: Final answer
    x = 11,590.60

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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.