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Finding the Fourth Proportional to 8,675.09, 12,944.48 and 8,146.11

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Solution

The fourth proportional to 8,675.09, 12,944.48 and 8,146.11 is: 12,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.09 : 12,944.48 = 8,146.11 : x
  2. Step 2: Convert to fraction form
    8,675.09/12,944.48 = 8,146.11/x
  3. Step 3: Cross multiply
    8,675.09x = 12,944.48 × 8,146.11
  4. Step 4: Simplify right side
    8,675.09x = 105,447,157.97
  5. Step 5: Solve for x
    x = 105,447,157.97/8,675.09
  6. Step 6: Final answer
    x = 12,155.17

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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.