Home / 12,079.01-18,118.52-5,507.07

Finding the Fourth Proportional to 12,079.01, 18,118.52 and 5,507.07

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Solution

The fourth proportional to 12,079.01, 18,118.52 and 5,507.07 is: 8,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.01 : 18,118.52 = 5,507.07 : x
  2. Step 2: Convert to fraction form
    12,079.01/18,118.52 = 5,507.07/x
  3. Step 3: Cross multiply
    12,079.01x = 18,118.52 × 5,507.07
  4. Step 4: Simplify right side
    12,079.01x = 99,779,930.40
  5. Step 5: Solve for x
    x = 99,779,930.40/12,079.01
  6. Step 6: Final answer
    x = 8,260.61

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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.