Home / 11,617.92-16,032.84-6,312.78

Finding the Fourth Proportional to 11,617.92, 16,032.84 and 6,312.78

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Solution

The fourth proportional to 11,617.92, 16,032.84 and 6,312.78 is: 8,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.92 : 16,032.84 = 6,312.78 : x
  2. Step 2: Convert to fraction form
    11,617.92/16,032.84 = 6,312.78/x
  3. Step 3: Cross multiply
    11,617.92x = 16,032.84 × 6,312.78
  4. Step 4: Simplify right side
    11,617.92x = 101,211,791.70
  5. Step 5: Solve for x
    x = 101,211,791.70/11,617.92
  6. Step 6: Final answer
    x = 8,711.70

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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.