Home / 13,600.71-20,385.27-9,148.95

Finding the Fourth Proportional to 13,600.71, 20,385.27 and 9,148.95

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Solution

The fourth proportional to 13,600.71, 20,385.27 and 9,148.95 is: 13,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.71 : 20,385.27 = 9,148.95 : x
  2. Step 2: Convert to fraction form
    13,600.71/20,385.27 = 9,148.95/x
  3. Step 3: Cross multiply
    13,600.71x = 20,385.27 × 9,148.95
  4. Step 4: Simplify right side
    13,600.71x = 186,503,815.97
  5. Step 5: Solve for x
    x = 186,503,815.97/13,600.71
  6. Step 6: Final answer
    x = 13,712.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.