Home / 12,666.52-17,463.40-8,680.50

Finding the Fourth Proportional to 12,666.52, 17,463.40 and 8,680.50

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Solution

The fourth proportional to 12,666.52, 17,463.40 and 8,680.50 is: 11,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.52 : 17,463.40 = 8,680.50 : x
  2. Step 2: Convert to fraction form
    12,666.52/17,463.40 = 8,680.50/x
  3. Step 3: Cross multiply
    12,666.52x = 17,463.40 × 8,680.50
  4. Step 4: Simplify right side
    12,666.52x = 151,591,043.70
  5. Step 5: Solve for x
    x = 151,591,043.70/12,666.52
  6. Step 6: Final answer
    x = 11,967.85

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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.