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Finding the Fourth Proportional to 8,976.79, 13,453.31 and 6,888.82

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Solution

The fourth proportional to 8,976.79, 13,453.31 and 6,888.82 is: 10,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.79 : 13,453.31 = 6,888.82 : x
  2. Step 2: Convert to fraction form
    8,976.79/13,453.31 = 6,888.82/x
  3. Step 3: Cross multiply
    8,976.79x = 13,453.31 × 6,888.82
  4. Step 4: Simplify right side
    8,976.79x = 92,677,329.28
  5. Step 5: Solve for x
    x = 92,677,329.28/8,976.79
  6. Step 6: Final answer
    x = 10,324.11

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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.