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Finding the Fourth Proportional to 7,957.99, 11,913.91 and 7,113.78

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Solution

The fourth proportional to 7,957.99, 11,913.91 and 7,113.78 is: 10,650.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.99 : 11,913.91 = 7,113.78 : x
  2. Step 2: Convert to fraction form
    7,957.99/11,913.91 = 7,113.78/x
  3. Step 3: Cross multiply
    7,957.99x = 11,913.91 × 7,113.78
  4. Step 4: Simplify right side
    7,957.99x = 84,752,934.68
  5. Step 5: Solve for x
    x = 84,752,934.68/7,957.99
  6. Step 6: Final answer
    x = 10,650.04

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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.