Home / 10,887.62-15,025.08-6,171.80

Finding the Fourth Proportional to 10,887.62, 15,025.08 and 6,171.80

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Solution

The fourth proportional to 10,887.62, 15,025.08 and 6,171.80 is: 8,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.62 : 15,025.08 = 6,171.80 : x
  2. Step 2: Convert to fraction form
    10,887.62/15,025.08 = 6,171.80/x
  3. Step 3: Cross multiply
    10,887.62x = 15,025.08 × 6,171.80
  4. Step 4: Simplify right side
    10,887.62x = 92,731,788.74
  5. Step 5: Solve for x
    x = 92,731,788.74/10,887.62
  6. Step 6: Final answer
    x = 8,517.18

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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.