Home / 12,851.28-17,605.98-12,371.58

Finding the Fourth Proportional to 12,851.28, 17,605.98 and 12,371.58

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Solution

The fourth proportional to 12,851.28, 17,605.98 and 12,371.58 is: 16,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.28 : 17,605.98 = 12,371.58 : x
  2. Step 2: Convert to fraction form
    12,851.28/17,605.98 = 12,371.58/x
  3. Step 3: Cross multiply
    12,851.28x = 17,605.98 × 12,371.58
  4. Step 4: Simplify right side
    12,851.28x = 217,813,790.05
  5. Step 5: Solve for x
    x = 217,813,790.05/12,851.28
  6. Step 6: Final answer
    x = 16,948.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.