Home / 12,877.20-17,809.65-11,550.42

Finding the Fourth Proportional to 12,877.20, 17,809.65 and 11,550.42

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Solution

The fourth proportional to 12,877.20, 17,809.65 and 11,550.42 is: 15,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.20 : 17,809.65 = 11,550.42 : x
  2. Step 2: Convert to fraction form
    12,877.20/17,809.65 = 11,550.42/x
  3. Step 3: Cross multiply
    12,877.20x = 17,809.65 × 11,550.42
  4. Step 4: Simplify right side
    12,877.20x = 205,708,937.55
  5. Step 5: Solve for x
    x = 205,708,937.55/12,877.20
  6. Step 6: Final answer
    x = 15,974.66

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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.