Home / 13,324.19-18,387.38-7,355.87

Finding the Fourth Proportional to 13,324.19, 18,387.38 and 7,355.87

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Solution

The fourth proportional to 13,324.19, 18,387.38 and 7,355.87 is: 10,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.19 : 18,387.38 = 7,355.87 : x
  2. Step 2: Convert to fraction form
    13,324.19/18,387.38 = 7,355.87/x
  3. Step 3: Cross multiply
    13,324.19x = 18,387.38 × 7,355.87
  4. Step 4: Simplify right side
    13,324.19x = 135,255,048.20
  5. Step 5: Solve for x
    x = 135,255,048.20/13,324.19
  6. Step 6: Final answer
    x = 10,151.09

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.