Home / 13,414.95-18,511.20-7,446.47

Finding the Fourth Proportional to 13,414.95, 18,511.20 and 7,446.47

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Solution

The fourth proportional to 13,414.95, 18,511.20 and 7,446.47 is: 10,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.95 : 18,511.20 = 7,446.47 : x
  2. Step 2: Convert to fraction form
    13,414.95/18,511.20 = 7,446.47/x
  3. Step 3: Cross multiply
    13,414.95x = 18,511.20 × 7,446.47
  4. Step 4: Simplify right side
    13,414.95x = 137,843,002.91
  5. Step 5: Solve for x
    x = 137,843,002.91/13,414.95
  6. Step 6: Final answer
    x = 10,275.33

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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.