Home / 8,452.19-12,681.30-3,771.78

Finding the Fourth Proportional to 8,452.19, 12,681.30 and 3,771.78

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Solution

The fourth proportional to 8,452.19, 12,681.30 and 3,771.78 is: 5,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.19 : 12,681.30 = 3,771.78 : x
  2. Step 2: Convert to fraction form
    8,452.19/12,681.30 = 3,771.78/x
  3. Step 3: Cross multiply
    8,452.19x = 12,681.30 × 3,771.78
  4. Step 4: Simplify right side
    8,452.19x = 47,831,073.71
  5. Step 5: Solve for x
    x = 47,831,073.71/8,452.19
  6. Step 6: Final answer
    x = 5,659.02

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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.