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Finding the Fourth Proportional to 8,933.18, 12,301.80 and 8,362.68

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Solution

The fourth proportional to 8,933.18, 12,301.80 and 8,362.68 is: 11,516.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.18 : 12,301.80 = 8,362.68 : x
  2. Step 2: Convert to fraction form
    8,933.18/12,301.80 = 8,362.68/x
  3. Step 3: Cross multiply
    8,933.18x = 12,301.80 × 8,362.68
  4. Step 4: Simplify right side
    8,933.18x = 102,876,016.82
  5. Step 5: Solve for x
    x = 102,876,016.82/8,933.18
  6. Step 6: Final answer
    x = 11,516.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.