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Finding the Fourth Proportional to 12,073.68, 16,661.76 and 7,040.88

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Solution

The fourth proportional to 12,073.68, 16,661.76 and 7,040.88 is: 9,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.68 : 16,661.76 = 7,040.88 : x
  2. Step 2: Convert to fraction form
    12,073.68/16,661.76 = 7,040.88/x
  3. Step 3: Cross multiply
    12,073.68x = 16,661.76 × 7,040.88
  4. Step 4: Simplify right side
    12,073.68x = 117,313,452.75
  5. Step 5: Solve for x
    x = 117,313,452.75/12,073.68
  6. Step 6: Final answer
    x = 9,716.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.