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Finding the Fourth Proportional to 8,913.48, 13,371.54 and 8,366.76

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Solution

The fourth proportional to 8,913.48, 13,371.54 and 8,366.76 is: 12,551.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.48 : 13,371.54 = 8,366.76 : x
  2. Step 2: Convert to fraction form
    8,913.48/13,371.54 = 8,366.76/x
  3. Step 3: Cross multiply
    8,913.48x = 13,371.54 × 8,366.76
  4. Step 4: Simplify right side
    8,913.48x = 111,876,466.01
  5. Step 5: Solve for x
    x = 111,876,466.01/8,913.48
  6. Step 6: Final answer
    x = 12,551.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.