Home / 11,127.94-15,355.51-6,650.80

Finding the Fourth Proportional to 11,127.94, 15,355.51 and 6,650.80

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Solution

The fourth proportional to 11,127.94, 15,355.51 and 6,650.80 is: 9,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.94 : 15,355.51 = 6,650.80 : x
  2. Step 2: Convert to fraction form
    11,127.94/15,355.51 = 6,650.80/x
  3. Step 3: Cross multiply
    11,127.94x = 15,355.51 × 6,650.80
  4. Step 4: Simplify right side
    11,127.94x = 102,126,425.91
  5. Step 5: Solve for x
    x = 102,126,425.91/11,127.94
  6. Step 6: Final answer
    x = 9,177.48

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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.