Home / 11,287.60-15,575.69-6,251.69

Finding the Fourth Proportional to 11,287.60, 15,575.69 and 6,251.69

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Solution

The fourth proportional to 11,287.60, 15,575.69 and 6,251.69 is: 8,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.60 : 15,575.69 = 6,251.69 : x
  2. Step 2: Convert to fraction form
    11,287.60/15,575.69 = 6,251.69/x
  3. Step 3: Cross multiply
    11,287.60x = 15,575.69 × 6,251.69
  4. Step 4: Simplify right side
    11,287.60x = 97,374,439.98
  5. Step 5: Solve for x
    x = 97,374,439.98/11,287.60
  6. Step 6: Final answer
    x = 8,626.68

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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.