Home / 18,385.38-25,373.25-10,427.94

Finding the Fourth Proportional to 18,385.38, 25,373.25 and 10,427.94

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Solution

The fourth proportional to 18,385.38, 25,373.25 and 10,427.94 is: 14,391.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.38 : 25,373.25 = 10,427.94 : x
  2. Step 2: Convert to fraction form
    18,385.38/25,373.25 = 10,427.94/x
  3. Step 3: Cross multiply
    18,385.38x = 25,373.25 × 10,427.94
  4. Step 4: Simplify right side
    18,385.38x = 264,590,728.61
  5. Step 5: Solve for x
    x = 264,590,728.61/18,385.38
  6. Step 6: Final answer
    x = 14,391.37

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.