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Finding the Fourth Proportional to 8,876.91, 12,253.64 and 5,339.45

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Solution

The fourth proportional to 8,876.91, 12,253.64 and 5,339.45 is: 7,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.91 : 12,253.64 = 5,339.45 : x
  2. Step 2: Convert to fraction form
    8,876.91/12,253.64 = 5,339.45/x
  3. Step 3: Cross multiply
    8,876.91x = 12,253.64 × 5,339.45
  4. Step 4: Simplify right side
    8,876.91x = 65,427,650.18
  5. Step 5: Solve for x
    x = 65,427,650.18/8,876.91
  6. Step 6: Final answer
    x = 7,370.54

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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.