Home / 12,069.90-18,104.85-9,881.10

Finding the Fourth Proportional to 12,069.90, 18,104.85 and 9,881.10

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Solution

The fourth proportional to 12,069.90, 18,104.85 and 9,881.10 is: 14,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.90 : 18,104.85 = 9,881.10 : x
  2. Step 2: Convert to fraction form
    12,069.90/18,104.85 = 9,881.10/x
  3. Step 3: Cross multiply
    12,069.90x = 18,104.85 × 9,881.10
  4. Step 4: Simplify right side
    12,069.90x = 178,895,833.34
  5. Step 5: Solve for x
    x = 178,895,833.34/12,069.90
  6. Step 6: Final answer
    x = 14,821.65

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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.