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Finding the Fourth Proportional to 8,663.24, 12,935.78 and 6,888.26

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Solution

The fourth proportional to 8,663.24, 12,935.78 and 6,888.26 is: 10,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.24 : 12,935.78 = 6,888.26 : x
  2. Step 2: Convert to fraction form
    8,663.24/12,935.78 = 6,888.26/x
  3. Step 3: Cross multiply
    8,663.24x = 12,935.78 × 6,888.26
  4. Step 4: Simplify right side
    8,663.24x = 89,105,015.94
  5. Step 5: Solve for x
    x = 89,105,015.94/8,663.24
  6. Step 6: Final answer
    x = 10,285.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.