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Finding the Fourth Proportional to 8,641.02, 12,959.64 and 3,374.34

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Solution

The fourth proportional to 8,641.02, 12,959.64 and 3,374.34 is: 5,060.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.02 : 12,959.64 = 3,374.34 : x
  2. Step 2: Convert to fraction form
    8,641.02/12,959.64 = 3,374.34/x
  3. Step 3: Cross multiply
    8,641.02x = 12,959.64 × 3,374.34
  4. Step 4: Simplify right side
    8,641.02x = 43,730,166.84
  5. Step 5: Solve for x
    x = 43,730,166.84/8,641.02
  6. Step 6: Final answer
    x = 5,060.77

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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.