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Finding the Fourth Proportional to 8,991.95, 13,488.32 and 6,514.97

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Solution

The fourth proportional to 8,991.95, 13,488.32 and 6,514.97 is: 9,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.95 : 13,488.32 = 6,514.97 : x
  2. Step 2: Convert to fraction form
    8,991.95/13,488.32 = 6,514.97/x
  3. Step 3: Cross multiply
    8,991.95x = 13,488.32 × 6,514.97
  4. Step 4: Simplify right side
    8,991.95x = 87,875,949.00
  5. Step 5: Solve for x
    x = 87,875,949.00/8,991.95
  6. Step 6: Final answer
    x = 9,772.74

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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.