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Finding the Fourth Proportional to 8,864.66, 12,239.10 and 6,844.40

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Solution

The fourth proportional to 8,864.66, 12,239.10 and 6,844.40 is: 9,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.66 : 12,239.10 = 6,844.40 : x
  2. Step 2: Convert to fraction form
    8,864.66/12,239.10 = 6,844.40/x
  3. Step 3: Cross multiply
    8,864.66x = 12,239.10 × 6,844.40
  4. Step 4: Simplify right side
    8,864.66x = 83,769,296.04
  5. Step 5: Solve for x
    x = 83,769,296.04/8,864.66
  6. Step 6: Final answer
    x = 9,449.80

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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.