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Finding the Fourth Proportional to 8,672.79, 13,009.22 and 2,098.97

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Solution

The fourth proportional to 8,672.79, 13,009.22 and 2,098.97 is: 3,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.79 : 13,009.22 = 2,098.97 : x
  2. Step 2: Convert to fraction form
    8,672.79/13,009.22 = 2,098.97/x
  3. Step 3: Cross multiply
    8,672.79x = 13,009.22 × 2,098.97
  4. Step 4: Simplify right side
    8,672.79x = 27,305,962.50
  5. Step 5: Solve for x
    x = 27,305,962.50/8,672.79
  6. Step 6: Final answer
    x = 3,148.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.