Home / 18,115.55-24,999.14-10,157.75

Finding the Fourth Proportional to 18,115.55, 24,999.14 and 10,157.75

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Solution

The fourth proportional to 18,115.55, 24,999.14 and 10,157.75 is: 14,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.55 : 24,999.14 = 10,157.75 : x
  2. Step 2: Convert to fraction form
    18,115.55/24,999.14 = 10,157.75/x
  3. Step 3: Cross multiply
    18,115.55x = 24,999.14 × 10,157.75
  4. Step 4: Simplify right side
    18,115.55x = 253,934,963.55
  5. Step 5: Solve for x
    x = 253,934,963.55/18,115.55
  6. Step 6: Final answer
    x = 14,017.51

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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.