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Finding the Fourth Proportional to 10,053.60, 15,091.20 and 5,679.60

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Solution

The fourth proportional to 10,053.60, 15,091.20 and 5,679.60 is: 8,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,053.60 : 15,091.20 = 5,679.60 : x
  2. Step 2: Convert to fraction form
    10,053.60/15,091.20 = 5,679.60/x
  3. Step 3: Cross multiply
    10,053.60x = 15,091.20 × 5,679.60
  4. Step 4: Simplify right side
    10,053.60x = 85,711,979.52
  5. Step 5: Solve for x
    x = 85,711,979.52/10,053.60
  6. Step 6: Final answer
    x = 8,525.50

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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.