Home / 13,329.54-18,391.46-8,154.18

Finding the Fourth Proportional to 13,329.54, 18,391.46 and 8,154.18

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Solution

The fourth proportional to 13,329.54, 18,391.46 and 8,154.18 is: 11,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.54 : 18,391.46 = 8,154.18 : x
  2. Step 2: Convert to fraction form
    13,329.54/18,391.46 = 8,154.18/x
  3. Step 3: Cross multiply
    13,329.54x = 18,391.46 × 8,154.18
  4. Step 4: Simplify right side
    13,329.54x = 149,967,234.53
  5. Step 5: Solve for x
    x = 149,967,234.53/13,329.54
  6. Step 6: Final answer
    x = 11,250.74

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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.