Home / 11,127.10-16,727.10-7,862.80

Finding the Fourth Proportional to 11,127.10, 16,727.10 and 7,862.80

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Solution

The fourth proportional to 11,127.10, 16,727.10 and 7,862.80 is: 11,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.10 : 16,727.10 = 7,862.80 : x
  2. Step 2: Convert to fraction form
    11,127.10/16,727.10 = 7,862.80/x
  3. Step 3: Cross multiply
    11,127.10x = 16,727.10 × 7,862.80
  4. Step 4: Simplify right side
    11,127.10x = 131,521,841.88
  5. Step 5: Solve for x
    x = 131,521,841.88/11,127.10
  6. Step 6: Final answer
    x = 11,819.96

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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.