Home / 18,381.13-25,366.16-9,997.63

Finding the Fourth Proportional to 18,381.13, 25,366.16 and 9,997.63

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Solution

The fourth proportional to 18,381.13, 25,366.16 and 9,997.63 is: 13,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.13 : 25,366.16 = 9,997.63 : x
  2. Step 2: Convert to fraction form
    18,381.13/25,366.16 = 9,997.63/x
  3. Step 3: Cross multiply
    18,381.13x = 25,366.16 × 9,997.63
  4. Step 4: Simplify right side
    18,381.13x = 253,601,482.20
  5. Step 5: Solve for x
    x = 253,601,482.20/18,381.13
  6. Step 6: Final answer
    x = 13,796.84

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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.