Home / 18,617.85-25,691.57-10,119.93

Finding the Fourth Proportional to 18,617.85, 25,691.57 and 10,119.93

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Solution

The fourth proportional to 18,617.85, 25,691.57 and 10,119.93 is: 13,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.85 : 25,691.57 = 10,119.93 : x
  2. Step 2: Convert to fraction form
    18,617.85/25,691.57 = 10,119.93/x
  3. Step 3: Cross multiply
    18,617.85x = 25,691.57 × 10,119.93
  4. Step 4: Simplify right side
    18,617.85x = 259,996,818.95
  5. Step 5: Solve for x
    x = 259,996,818.95/18,617.85
  6. Step 6: Final answer
    x = 13,964.92

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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.