Home / 8,214.11-11,316.80-7,660.07

Finding the Fourth Proportional to 8,214.11, 11,316.80 and 7,660.07

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Solution

The fourth proportional to 8,214.11, 11,316.80 and 7,660.07 is: 10,553.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.11 : 11,316.80 = 7,660.07 : x
  2. Step 2: Convert to fraction form
    8,214.11/11,316.80 = 7,660.07/x
  3. Step 3: Cross multiply
    8,214.11x = 11,316.80 × 7,660.07
  4. Step 4: Simplify right side
    8,214.11x = 86,687,385.29
  5. Step 5: Solve for x
    x = 86,687,385.29/8,214.11
  6. Step 6: Final answer
    x = 10,553.48

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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.