Home / 12,671.28-17,491.68-9,340.56

Finding the Fourth Proportional to 12,671.28, 17,491.68 and 9,340.56

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Solution

The fourth proportional to 12,671.28, 17,491.68 and 9,340.56 is: 12,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.28 : 17,491.68 = 9,340.56 : x
  2. Step 2: Convert to fraction form
    12,671.28/17,491.68 = 9,340.56/x
  3. Step 3: Cross multiply
    12,671.28x = 17,491.68 × 9,340.56
  4. Step 4: Simplify right side
    12,671.28x = 163,382,086.54
  5. Step 5: Solve for x
    x = 163,382,086.54/12,671.28
  6. Step 6: Final answer
    x = 12,893.89

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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.