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Finding the Fourth Proportional to 7,951.60, 11,927.40 and 4,999.15

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Solution

The fourth proportional to 7,951.60, 11,927.40 and 4,999.15 is: 7,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.60 : 11,927.40 = 4,999.15 : x
  2. Step 2: Convert to fraction form
    7,951.60/11,927.40 = 4,999.15/x
  3. Step 3: Cross multiply
    7,951.60x = 11,927.40 × 4,999.15
  4. Step 4: Simplify right side
    7,951.60x = 59,626,861.71
  5. Step 5: Solve for x
    x = 59,626,861.71/7,951.60
  6. Step 6: Final answer
    x = 7,498.73

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Similar ratio
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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.