Home / 8,424.45-12,636.68-3,744.45

Finding the Fourth Proportional to 8,424.45, 12,636.68 and 3,744.45

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Solution

The fourth proportional to 8,424.45, 12,636.68 and 3,744.45 is: 5,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.45 : 12,636.68 = 3,744.45 : x
  2. Step 2: Convert to fraction form
    8,424.45/12,636.68 = 3,744.45/x
  3. Step 3: Cross multiply
    8,424.45x = 12,636.68 × 3,744.45
  4. Step 4: Simplify right side
    8,424.45x = 47,317,397.70
  5. Step 5: Solve for x
    x = 47,317,397.70/8,424.45
  6. Step 6: Final answer
    x = 5,616.68

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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.