Home / 8,228.76-12,343.74-2,385.40

Finding the Fourth Proportional to 8,228.76, 12,343.74 and 2,385.40

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Solution

The fourth proportional to 8,228.76, 12,343.74 and 2,385.40 is: 3,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.76 : 12,343.74 = 2,385.40 : x
  2. Step 2: Convert to fraction form
    8,228.76/12,343.74 = 2,385.40/x
  3. Step 3: Cross multiply
    8,228.76x = 12,343.74 × 2,385.40
  4. Step 4: Simplify right side
    8,228.76x = 29,444,757.40
  5. Step 5: Solve for x
    x = 29,444,757.40/8,228.76
  6. Step 6: Final answer
    x = 3,578.27

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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.