Home / 18,381.02-25,365.57-9,997.52

Finding the Fourth Proportional to 18,381.02, 25,365.57 and 9,997.52

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Solution

The fourth proportional to 18,381.02, 25,365.57 and 9,997.52 is: 13,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.02 : 25,365.57 = 9,997.52 : x
  2. Step 2: Convert to fraction form
    18,381.02/25,365.57 = 9,997.52/x
  3. Step 3: Cross multiply
    18,381.02x = 25,365.57 × 9,997.52
  4. Step 4: Simplify right side
    18,381.02x = 253,592,793.39
  5. Step 5: Solve for x
    x = 253,592,793.39/18,381.02
  6. Step 6: Final answer
    x = 13,796.45

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Half scale
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Double scale
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Similar ratio
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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.