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Finding the Fourth Proportional to 8,590.88, 12,892.88 and 6,091.84

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Solution

The fourth proportional to 8,590.88, 12,892.88 and 6,091.84 is: 9,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.88 : 12,892.88 = 6,091.84 : x
  2. Step 2: Convert to fraction form
    8,590.88/12,892.88 = 6,091.84/x
  3. Step 3: Cross multiply
    8,590.88x = 12,892.88 × 6,091.84
  4. Step 4: Simplify right side
    8,590.88x = 78,541,362.10
  5. Step 5: Solve for x
    x = 78,541,362.10/8,590.88
  6. Step 6: Final answer
    x = 9,142.41

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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.