Home / 8,862.90-13,291.20-3,923.70

Finding the Fourth Proportional to 8,862.90, 13,291.20 and 3,923.70

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Solution

The fourth proportional to 8,862.90, 13,291.20 and 3,923.70 is: 5,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.90 : 13,291.20 = 3,923.70 : x
  2. Step 2: Convert to fraction form
    8,862.90/13,291.20 = 3,923.70/x
  3. Step 3: Cross multiply
    8,862.90x = 13,291.20 × 3,923.70
  4. Step 4: Simplify right side
    8,862.90x = 52,150,681.44
  5. Step 5: Solve for x
    x = 52,150,681.44/8,862.90
  6. Step 6: Final answer
    x = 5,884.16

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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.