Home / 12,520.68-17,292.72-8,534.94

Finding the Fourth Proportional to 12,520.68, 17,292.72 and 8,534.94

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Solution

The fourth proportional to 12,520.68, 17,292.72 and 8,534.94 is: 11,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.68 : 17,292.72 = 8,534.94 : x
  2. Step 2: Convert to fraction form
    12,520.68/17,292.72 = 8,534.94/x
  3. Step 3: Cross multiply
    12,520.68x = 17,292.72 × 8,534.94
  4. Step 4: Simplify right side
    12,520.68x = 147,592,327.64
  5. Step 5: Solve for x
    x = 147,592,327.64/12,520.68
  6. Step 6: Final answer
    x = 11,787.88

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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.