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Finding the Fourth Proportional to 8,673.84, 13,009.41 and 2,829.15

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Solution

The fourth proportional to 8,673.84, 13,009.41 and 2,829.15 is: 4,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.84 : 13,009.41 = 2,829.15 : x
  2. Step 2: Convert to fraction form
    8,673.84/13,009.41 = 2,829.15/x
  3. Step 3: Cross multiply
    8,673.84x = 13,009.41 × 2,829.15
  4. Step 4: Simplify right side
    8,673.84x = 36,805,572.30
  5. Step 5: Solve for x
    x = 36,805,572.30/8,673.84
  6. Step 6: Final answer
    x = 4,243.28

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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.