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Finding the Fourth Proportional to 8,411.95, 12,616.55 and 5,939.28

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Solution

The fourth proportional to 8,411.95, 12,616.55 and 5,939.28 is: 8,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.95 : 12,616.55 = 5,939.28 : x
  2. Step 2: Convert to fraction form
    8,411.95/12,616.55 = 5,939.28/x
  3. Step 3: Cross multiply
    8,411.95x = 12,616.55 × 5,939.28
  4. Step 4: Simplify right side
    8,411.95x = 74,933,201.76
  5. Step 5: Solve for x
    x = 74,933,201.76/8,411.95
  6. Step 6: Final answer
    x = 8,907.94

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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.