Home / 7,618.30-11,432.55-2,687.95

Finding the Fourth Proportional to 7,618.30, 11,432.55 and 2,687.95

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Solution

The fourth proportional to 7,618.30, 11,432.55 and 2,687.95 is: 4,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.30 : 11,432.55 = 2,687.95 : x
  2. Step 2: Convert to fraction form
    7,618.30/11,432.55 = 2,687.95/x
  3. Step 3: Cross multiply
    7,618.30x = 11,432.55 × 2,687.95
  4. Step 4: Simplify right side
    7,618.30x = 30,730,122.77
  5. Step 5: Solve for x
    x = 30,730,122.77/7,618.30
  6. Step 6: Final answer
    x = 4,033.72

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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.