Home / 10,371.10-15,539.55-5,980.90

Finding the Fourth Proportional to 10,371.10, 15,539.55 and 5,980.90

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Solution

The fourth proportional to 10,371.10, 15,539.55 and 5,980.90 is: 8,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.10 : 15,539.55 = 5,980.90 : x
  2. Step 2: Convert to fraction form
    10,371.10/15,539.55 = 5,980.90/x
  3. Step 3: Cross multiply
    10,371.10x = 15,539.55 × 5,980.90
  4. Step 4: Simplify right side
    10,371.10x = 92,940,494.60
  5. Step 5: Solve for x
    x = 92,940,494.60/10,371.10
  6. Step 6: Final answer
    x = 8,961.49

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Half scale
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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.