Home / 9,108.72-12,577.68-6,134.40

Finding the Fourth Proportional to 9,108.72, 12,577.68 and 6,134.40

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Solution

The fourth proportional to 9,108.72, 12,577.68 and 6,134.40 is: 8,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.72 : 12,577.68 = 6,134.40 : x
  2. Step 2: Convert to fraction form
    9,108.72/12,577.68 = 6,134.40/x
  3. Step 3: Cross multiply
    9,108.72x = 12,577.68 × 6,134.40
  4. Step 4: Simplify right side
    9,108.72x = 77,156,520.19
  5. Step 5: Solve for x
    x = 77,156,520.19/9,108.72
  6. Step 6: Final answer
    x = 8,470.62

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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.