Home / 13,647.97-20,472.41-3,787.35

Finding the Fourth Proportional to 13,647.97, 20,472.41 and 3,787.35

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Solution

The fourth proportional to 13,647.97, 20,472.41 and 3,787.35 is: 5,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.97 : 20,472.41 = 3,787.35 : x
  2. Step 2: Convert to fraction form
    13,647.97/20,472.41 = 3,787.35/x
  3. Step 3: Cross multiply
    13,647.97x = 20,472.41 × 3,787.35
  4. Step 4: Simplify right side
    13,647.97x = 77,536,182.01
  5. Step 5: Solve for x
    x = 77,536,182.01/13,647.97
  6. Step 6: Final answer
    x = 5,681.15

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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.