Home / 8,776.97-12,127.68-6,505.06

Finding the Fourth Proportional to 8,776.97, 12,127.68 and 6,505.06

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Solution

The fourth proportional to 8,776.97, 12,127.68 and 6,505.06 is: 8,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.97 : 12,127.68 = 6,505.06 : x
  2. Step 2: Convert to fraction form
    8,776.97/12,127.68 = 6,505.06/x
  3. Step 3: Cross multiply
    8,776.97x = 12,127.68 × 6,505.06
  4. Step 4: Simplify right side
    8,776.97x = 78,891,255.74
  5. Step 5: Solve for x
    x = 78,891,255.74/8,776.97
  6. Step 6: Final answer
    x = 8,988.44

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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.