Home / 8,862.65-13,289.31-3,930.15

Finding the Fourth Proportional to 8,862.65, 13,289.31 and 3,930.15

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Solution

The fourth proportional to 8,862.65, 13,289.31 and 3,930.15 is: 5,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.65 : 13,289.31 = 3,930.15 : x
  2. Step 2: Convert to fraction form
    8,862.65/13,289.31 = 3,930.15/x
  3. Step 3: Cross multiply
    8,862.65x = 13,289.31 × 3,930.15
  4. Step 4: Simplify right side
    8,862.65x = 52,228,981.70
  5. Step 5: Solve for x
    x = 52,228,981.70/8,862.65
  6. Step 6: Final answer
    x = 5,893.16

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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.