Home / 8,412.40-12,618.49-2,569.04

Finding the Fourth Proportional to 8,412.40, 12,618.49 and 2,569.04

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Solution

The fourth proportional to 8,412.40, 12,618.49 and 2,569.04 is: 3,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.40 : 12,618.49 = 2,569.04 : x
  2. Step 2: Convert to fraction form
    8,412.40/12,618.49 = 2,569.04/x
  3. Step 3: Cross multiply
    8,412.40x = 12,618.49 × 2,569.04
  4. Step 4: Simplify right side
    8,412.40x = 32,417,405.55
  5. Step 5: Solve for x
    x = 32,417,405.55/8,412.40
  6. Step 6: Final answer
    x = 3,853.53

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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.