Home / 10,365.31-15,560.97-8,310.91

Finding the Fourth Proportional to 10,365.31, 15,560.97 and 8,310.91

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Solution

The fourth proportional to 10,365.31, 15,560.97 and 8,310.91 is: 12,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.31 : 15,560.97 = 8,310.91 : x
  2. Step 2: Convert to fraction form
    10,365.31/15,560.97 = 8,310.91/x
  3. Step 3: Cross multiply
    10,365.31x = 15,560.97 × 8,310.91
  4. Step 4: Simplify right side
    10,365.31x = 129,325,821.18
  5. Step 5: Solve for x
    x = 129,325,821.18/10,365.31
  6. Step 6: Final answer
    x = 12,476.79

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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.