Home / 8,470.42-12,705.36-2,625.46

Finding the Fourth Proportional to 8,470.42, 12,705.36 and 2,625.46

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Solution

The fourth proportional to 8,470.42, 12,705.36 and 2,625.46 is: 3,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.42 : 12,705.36 = 2,625.46 : x
  2. Step 2: Convert to fraction form
    8,470.42/12,705.36 = 2,625.46/x
  3. Step 3: Cross multiply
    8,470.42x = 12,705.36 × 2,625.46
  4. Step 4: Simplify right side
    8,470.42x = 33,357,414.47
  5. Step 5: Solve for x
    x = 33,357,414.47/8,470.42
  6. Step 6: Final answer
    x = 3,938.11

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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.