Home / 8,297.28-12,453.21-5,378.85

Finding the Fourth Proportional to 8,297.28, 12,453.21 and 5,378.85

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Solution

The fourth proportional to 8,297.28, 12,453.21 and 5,378.85 is: 8,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,297.28 : 12,453.21 = 5,378.85 : x
  2. Step 2: Convert to fraction form
    8,297.28/12,453.21 = 5,378.85/x
  3. Step 3: Cross multiply
    8,297.28x = 12,453.21 × 5,378.85
  4. Step 4: Simplify right side
    8,297.28x = 66,983,948.61
  5. Step 5: Solve for x
    x = 66,983,948.61/8,297.28
  6. Step 6: Final answer
    x = 8,073.00

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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.