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Finding the Fourth Proportional to 8,625.97, 12,948.01 and 7,645.06

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Solution

The fourth proportional to 8,625.97, 12,948.01 and 7,645.06 is: 11,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.97 : 12,948.01 = 7,645.06 : x
  2. Step 2: Convert to fraction form
    8,625.97/12,948.01 = 7,645.06/x
  3. Step 3: Cross multiply
    8,625.97x = 12,948.01 × 7,645.06
  4. Step 4: Simplify right side
    8,625.97x = 98,988,313.33
  5. Step 5: Solve for x
    x = 98,988,313.33/8,625.97
  6. Step 6: Final answer
    x = 11,475.62

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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.