Home / 8,414.48-11,611.56-4,687.76

Finding the Fourth Proportional to 8,414.48, 11,611.56 and 4,687.76

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Solution

The fourth proportional to 8,414.48, 11,611.56 and 4,687.76 is: 6,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.48 : 11,611.56 = 4,687.76 : x
  2. Step 2: Convert to fraction form
    8,414.48/11,611.56 = 4,687.76/x
  3. Step 3: Cross multiply
    8,414.48x = 11,611.56 × 4,687.76
  4. Step 4: Simplify right side
    8,414.48x = 54,432,206.51
  5. Step 5: Solve for x
    x = 54,432,206.51/8,414.48
  6. Step 6: Final answer
    x = 6,468.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.