Home / 18,142.55-25,036.04-10,076.57

Finding the Fourth Proportional to 18,142.55, 25,036.04 and 10,076.57

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Solution

The fourth proportional to 18,142.55, 25,036.04 and 10,076.57 is: 13,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.55 : 25,036.04 = 10,076.57 : x
  2. Step 2: Convert to fraction form
    18,142.55/25,036.04 = 10,076.57/x
  3. Step 3: Cross multiply
    18,142.55x = 25,036.04 × 10,076.57
  4. Step 4: Simplify right side
    18,142.55x = 252,277,234.02
  5. Step 5: Solve for x
    x = 252,277,234.02/18,142.55
  6. Step 6: Final answer
    x = 13,905.28

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Half 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.