Home / 12,087.38-18,131.07-4,296.50

Finding the Fourth Proportional to 12,087.38, 18,131.07 and 4,296.50

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Solution

The fourth proportional to 12,087.38, 18,131.07 and 4,296.50 is: 6,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.38 : 18,131.07 = 4,296.50 : x
  2. Step 2: Convert to fraction form
    12,087.38/18,131.07 = 4,296.50/x
  3. Step 3: Cross multiply
    12,087.38x = 18,131.07 × 4,296.50
  4. Step 4: Simplify right side
    12,087.38x = 77,900,051.60
  5. Step 5: Solve for x
    x = 77,900,051.60/12,087.38
  6. Step 6: Final answer
    x = 6,444.75

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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.