Home / 8,412.90-12,619.38-2,569.56

Finding the Fourth Proportional to 8,412.90, 12,619.38 and 2,569.56

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Solution

The fourth proportional to 8,412.90, 12,619.38 and 2,569.56 is: 3,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.90 : 12,619.38 = 2,569.56 : x
  2. Step 2: Convert to fraction form
    8,412.90/12,619.38 = 2,569.56/x
  3. Step 3: Cross multiply
    8,412.90x = 12,619.38 × 2,569.56
  4. Step 4: Simplify right side
    8,412.90x = 32,426,254.07
  5. Step 5: Solve for x
    x = 32,426,254.07/8,412.90
  6. Step 6: Final answer
    x = 3,854.35

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Similar ratio
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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.