Home / 12,385.16-18,565.50-4,591.88

Finding the Fourth Proportional to 12,385.16, 18,565.50 and 4,591.88

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Solution

The fourth proportional to 12,385.16, 18,565.50 and 4,591.88 is: 6,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.16 : 18,565.50 = 4,591.88 : x
  2. Step 2: Convert to fraction form
    12,385.16/18,565.50 = 4,591.88/x
  3. Step 3: Cross multiply
    12,385.16x = 18,565.50 × 4,591.88
  4. Step 4: Simplify right side
    12,385.16x = 85,250,548.14
  5. Step 5: Solve for x
    x = 85,250,548.14/12,385.16
  6. Step 6: Final answer
    x = 6,883.28

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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.