Home / 8,853.11-12,218.46-5,718.41

Finding the Fourth Proportional to 8,853.11, 12,218.46 and 5,718.41

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Solution

The fourth proportional to 8,853.11, 12,218.46 and 5,718.41 is: 7,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.11 : 12,218.46 = 5,718.41 : x
  2. Step 2: Convert to fraction form
    8,853.11/12,218.46 = 5,718.41/x
  3. Step 3: Cross multiply
    8,853.11x = 12,218.46 × 5,718.41
  4. Step 4: Simplify right side
    8,853.11x = 69,870,163.85
  5. Step 5: Solve for x
    x = 69,870,163.85/8,853.11
  6. Step 6: Final answer
    x = 7,892.16

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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.