Home / 15,445.53-21,314.83-8,371.95

Finding the Fourth Proportional to 15,445.53, 21,314.83 and 8,371.95

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Solution

The fourth proportional to 15,445.53, 21,314.83 and 8,371.95 is: 11,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.53 : 21,314.83 = 8,371.95 : x
  2. Step 2: Convert to fraction form
    15,445.53/21,314.83 = 8,371.95/x
  3. Step 3: Cross multiply
    15,445.53x = 21,314.83 × 8,371.95
  4. Step 4: Simplify right side
    15,445.53x = 178,446,691.02
  5. Step 5: Solve for x
    x = 178,446,691.02/15,445.53
  6. Step 6: Final answer
    x = 11,553.29

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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.