Home / 10,471.18-15,686.72-10,119.44

Finding the Fourth Proportional to 10,471.18, 15,686.72 and 10,119.44

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Solution

The fourth proportional to 10,471.18, 15,686.72 and 10,119.44 is: 15,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.18 : 15,686.72 = 10,119.44 : x
  2. Step 2: Convert to fraction form
    10,471.18/15,686.72 = 10,119.44/x
  3. Step 3: Cross multiply
    10,471.18x = 15,686.72 × 10,119.44
  4. Step 4: Simplify right side
    10,471.18x = 158,740,821.84
  5. Step 5: Solve for x
    x = 158,740,821.84/10,471.18
  6. Step 6: Final answer
    x = 15,159.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.