Home / 8,876.49-12,247.36-5,426.20

Finding the Fourth Proportional to 8,876.49, 12,247.36 and 5,426.20

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Solution

The fourth proportional to 8,876.49, 12,247.36 and 5,426.20 is: 7,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.49 : 12,247.36 = 5,426.20 : x
  2. Step 2: Convert to fraction form
    8,876.49/12,247.36 = 5,426.20/x
  3. Step 3: Cross multiply
    8,876.49x = 12,247.36 × 5,426.20
  4. Step 4: Simplify right side
    8,876.49x = 66,456,624.83
  5. Step 5: Solve for x
    x = 66,456,624.83/8,876.49
  6. Step 6: Final answer
    x = 7,486.81

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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.