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Finding the Fourth Proportional to 8,984.97, 12,399.64 and 5,006.08

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Solution

The fourth proportional to 8,984.97, 12,399.64 and 5,006.08 is: 6,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.97 : 12,399.64 = 5,006.08 : x
  2. Step 2: Convert to fraction form
    8,984.97/12,399.64 = 5,006.08/x
  3. Step 3: Cross multiply
    8,984.97x = 12,399.64 × 5,006.08
  4. Step 4: Simplify right side
    8,984.97x = 62,073,589.81
  5. Step 5: Solve for x
    x = 62,073,589.81/8,984.97
  6. Step 6: Final answer
    x = 6,908.60

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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.