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Finding the Fourth Proportional to 9,871.33, 14,734.97 and 8,625.75

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Solution

The fourth proportional to 9,871.33, 14,734.97 and 8,625.75 is: 12,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.33 : 14,734.97 = 8,625.75 : x
  2. Step 2: Convert to fraction form
    9,871.33/14,734.97 = 8,625.75/x
  3. Step 3: Cross multiply
    9,871.33x = 14,734.97 × 8,625.75
  4. Step 4: Simplify right side
    9,871.33x = 127,100,167.48
  5. Step 5: Solve for x
    x = 127,100,167.48/9,871.33
  6. Step 6: Final answer
    x = 12,875.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.