Home / 8,240.40-12,350.28-3,554.88

Finding the Fourth Proportional to 8,240.40, 12,350.28 and 3,554.88

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Solution

The fourth proportional to 8,240.40, 12,350.28 and 3,554.88 is: 5,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.40 : 12,350.28 = 3,554.88 : x
  2. Step 2: Convert to fraction form
    8,240.40/12,350.28 = 3,554.88/x
  3. Step 3: Cross multiply
    8,240.40x = 12,350.28 × 3,554.88
  4. Step 4: Simplify right side
    8,240.40x = 43,903,763.37
  5. Step 5: Solve for x
    x = 43,903,763.37/8,240.40
  6. Step 6: Final answer
    x = 5,327.87

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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.