Home / 10,820.10-16,230.15-8,997.60

Finding the Fourth Proportional to 10,820.10, 16,230.15 and 8,997.60

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Solution

The fourth proportional to 10,820.10, 16,230.15 and 8,997.60 is: 13,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.10 : 16,230.15 = 8,997.60 : x
  2. Step 2: Convert to fraction form
    10,820.10/16,230.15 = 8,997.60/x
  3. Step 3: Cross multiply
    10,820.10x = 16,230.15 × 8,997.60
  4. Step 4: Simplify right side
    10,820.10x = 146,032,397.64
  5. Step 5: Solve for x
    x = 146,032,397.64/10,820.10
  6. Step 6: Final answer
    x = 13,496.40

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Half scale
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Double 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.