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Finding the Fourth Proportional to 8,371.94, 12,559.94 and 2,528.20

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Solution

The fourth proportional to 8,371.94, 12,559.94 and 2,528.20 is: 3,792.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.94 : 12,559.94 = 2,528.20 : x
  2. Step 2: Convert to fraction form
    8,371.94/12,559.94 = 2,528.20/x
  3. Step 3: Cross multiply
    8,371.94x = 12,559.94 × 2,528.20
  4. Step 4: Simplify right side
    8,371.94x = 31,754,040.31
  5. Step 5: Solve for x
    x = 31,754,040.31/8,371.94
  6. Step 6: Final answer
    x = 3,792.91

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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.