Home / 8,425.79-12,638.51-3,744.53

Finding the Fourth Proportional to 8,425.79, 12,638.51 and 3,744.53

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Solution

The fourth proportional to 8,425.79, 12,638.51 and 3,744.53 is: 5,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.79 : 12,638.51 = 3,744.53 : x
  2. Step 2: Convert to fraction form
    8,425.79/12,638.51 = 3,744.53/x
  3. Step 3: Cross multiply
    8,425.79x = 12,638.51 × 3,744.53
  4. Step 4: Simplify right side
    8,425.79x = 47,325,279.85
  5. Step 5: Solve for x
    x = 47,325,279.85/8,425.79
  6. Step 6: Final answer
    x = 5,616.72

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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.