Home / 8,964.23-12,376.17-5,778.66

Finding the Fourth Proportional to 8,964.23, 12,376.17 and 5,778.66

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Solution

The fourth proportional to 8,964.23, 12,376.17 and 5,778.66 is: 7,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.23 : 12,376.17 = 5,778.66 : x
  2. Step 2: Convert to fraction form
    8,964.23/12,376.17 = 5,778.66/x
  3. Step 3: Cross multiply
    8,964.23x = 12,376.17 × 5,778.66
  4. Step 4: Simplify right side
    8,964.23x = 71,517,678.53
  5. Step 5: Solve for x
    x = 71,517,678.53/8,964.23
  6. Step 6: Final answer
    x = 7,978.12

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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.