Home / 8,357.45-12,535.61-3,425.76

Finding the Fourth Proportional to 8,357.45, 12,535.61 and 3,425.76

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Solution

The fourth proportional to 8,357.45, 12,535.61 and 3,425.76 is: 5,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.45 : 12,535.61 = 3,425.76 : x
  2. Step 2: Convert to fraction form
    8,357.45/12,535.61 = 3,425.76/x
  3. Step 3: Cross multiply
    8,357.45x = 12,535.61 × 3,425.76
  4. Step 4: Simplify right side
    8,357.45x = 42,943,974.18
  5. Step 5: Solve for x
    x = 42,943,974.18/8,357.45
  6. Step 6: Final answer
    x = 5,138.41

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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.