Home / 8,869.14-12,243.48-6,318.66

Finding the Fourth Proportional to 8,869.14, 12,243.48 and 6,318.66

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Solution

The fourth proportional to 8,869.14, 12,243.48 and 6,318.66 is: 8,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.14 : 12,243.48 = 6,318.66 : x
  2. Step 2: Convert to fraction form
    8,869.14/12,243.48 = 6,318.66/x
  3. Step 3: Cross multiply
    8,869.14x = 12,243.48 × 6,318.66
  4. Step 4: Simplify right side
    8,869.14x = 77,362,387.34
  5. Step 5: Solve for x
    x = 77,362,387.34/8,869.14
  6. Step 6: Final answer
    x = 8,722.65

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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.