Home / 8,943.13-12,338.66-5,165.80

Finding the Fourth Proportional to 8,943.13, 12,338.66 and 5,165.80

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Solution

The fourth proportional to 8,943.13, 12,338.66 and 5,165.80 is: 7,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.13 : 12,338.66 = 5,165.80 : x
  2. Step 2: Convert to fraction form
    8,943.13/12,338.66 = 5,165.80/x
  3. Step 3: Cross multiply
    8,943.13x = 12,338.66 × 5,165.80
  4. Step 4: Simplify right side
    8,943.13x = 63,739,049.83
  5. Step 5: Solve for x
    x = 63,739,049.83/8,943.13
  6. Step 6: Final answer
    x = 7,127.15

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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.