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Finding the Fourth Proportional to 10,010.60, 15,003.30 and 5,081.60

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Solution

The fourth proportional to 10,010.60, 15,003.30 and 5,081.60 is: 7,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.60 : 15,003.30 = 5,081.60 : x
  2. Step 2: Convert to fraction form
    10,010.60/15,003.30 = 5,081.60/x
  3. Step 3: Cross multiply
    10,010.60x = 15,003.30 × 5,081.60
  4. Step 4: Simplify right side
    10,010.60x = 76,240,769.28
  5. Step 5: Solve for x
    x = 76,240,769.28/10,010.60
  6. Step 6: Final answer
    x = 7,616.00

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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.