Home / 12,239.79-18,356.91-5,993.55

Finding the Fourth Proportional to 12,239.79, 18,356.91 and 5,993.55

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Solution

The fourth proportional to 12,239.79, 18,356.91 and 5,993.55 is: 8,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.79 : 18,356.91 = 5,993.55 : x
  2. Step 2: Convert to fraction form
    12,239.79/18,356.91 = 5,993.55/x
  3. Step 3: Cross multiply
    12,239.79x = 18,356.91 × 5,993.55
  4. Step 4: Simplify right side
    12,239.79x = 110,023,057.93
  5. Step 5: Solve for x
    x = 110,023,057.93/12,239.79
  6. Step 6: Final answer
    x = 8,988.97

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Half scale
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Double scale
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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.