Home / 8,356.60-12,536.34-3,428.92

Finding the Fourth Proportional to 8,356.60, 12,536.34 and 3,428.92

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Solution

The fourth proportional to 8,356.60, 12,536.34 and 3,428.92 is: 5,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.60 : 12,536.34 = 3,428.92 : x
  2. Step 2: Convert to fraction form
    8,356.60/12,536.34 = 3,428.92/x
  3. Step 3: Cross multiply
    8,356.60x = 12,536.34 × 3,428.92
  4. Step 4: Simplify right side
    8,356.60x = 42,986,106.95
  5. Step 5: Solve for x
    x = 42,986,106.95/8,356.60
  6. Step 6: Final answer
    x = 5,143.97

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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.