Home / 8,454.95-12,685.13-3,525.11

Finding the Fourth Proportional to 8,454.95, 12,685.13 and 3,525.11

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Solution

The fourth proportional to 8,454.95, 12,685.13 and 3,525.11 is: 5,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.95 : 12,685.13 = 3,525.11 : x
  2. Step 2: Convert to fraction form
    8,454.95/12,685.13 = 3,525.11/x
  3. Step 3: Cross multiply
    8,454.95x = 12,685.13 × 3,525.11
  4. Step 4: Simplify right side
    8,454.95x = 44,716,478.61
  5. Step 5: Solve for x
    x = 44,716,478.61/8,454.95
  6. Step 6: Final answer
    x = 5,288.79

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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.