Home / 8,981.28-13,472.46-3,787.56

Finding the Fourth Proportional to 8,981.28, 13,472.46 and 3,787.56

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Solution

The fourth proportional to 8,981.28, 13,472.46 and 3,787.56 is: 5,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.28 : 13,472.46 = 3,787.56 : x
  2. Step 2: Convert to fraction form
    8,981.28/13,472.46 = 3,787.56/x
  3. Step 3: Cross multiply
    8,981.28x = 13,472.46 × 3,787.56
  4. Step 4: Simplify right side
    8,981.28x = 51,027,750.60
  5. Step 5: Solve for x
    x = 51,027,750.60/8,981.28
  6. Step 6: Final answer
    x = 5,681.57

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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.