Home / 12,278.18-18,414.84-5,707.46

Finding the Fourth Proportional to 12,278.18, 18,414.84 and 5,707.46

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Solution

The fourth proportional to 12,278.18, 18,414.84 and 5,707.46 is: 8,560.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.18 : 18,414.84 = 5,707.46 : x
  2. Step 2: Convert to fraction form
    12,278.18/18,414.84 = 5,707.46/x
  3. Step 3: Cross multiply
    12,278.18x = 18,414.84 × 5,707.46
  4. Step 4: Simplify right side
    12,278.18x = 105,101,962.71
  5. Step 5: Solve for x
    x = 105,101,962.71/12,278.18
  6. Step 6: Final answer
    x = 8,560.06

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1.5x scale

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.