Home / 8,625.14-12,937.78-3,431.04

Finding the Fourth Proportional to 8,625.14, 12,937.78 and 3,431.04

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Solution

The fourth proportional to 8,625.14, 12,937.78 and 3,431.04 is: 5,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.14 : 12,937.78 = 3,431.04 : x
  2. Step 2: Convert to fraction form
    8,625.14/12,937.78 = 3,431.04/x
  3. Step 3: Cross multiply
    8,625.14x = 12,937.78 × 3,431.04
  4. Step 4: Simplify right side
    8,625.14x = 44,390,040.69
  5. Step 5: Solve for x
    x = 44,390,040.69/8,625.14
  6. Step 6: Final answer
    x = 5,146.59

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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.