Home / 14,766.57-20,387.57-10,780.70

Finding the Fourth Proportional to 14,766.57, 20,387.57 and 10,780.70

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Solution

The fourth proportional to 14,766.57, 20,387.57 and 10,780.70 is: 14,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,766.57 : 20,387.57 = 10,780.70 : x
  2. Step 2: Convert to fraction form
    14,766.57/20,387.57 = 10,780.70/x
  3. Step 3: Cross multiply
    14,766.57x = 20,387.57 × 10,780.70
  4. Step 4: Simplify right side
    14,766.57x = 219,792,120.06
  5. Step 5: Solve for x
    x = 219,792,120.06/14,766.57
  6. Step 6: Final answer
    x = 14,884.44

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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.