Home / 8,989.33-12,403.38-5,453.68

Finding the Fourth Proportional to 8,989.33, 12,403.38 and 5,453.68

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Solution

The fourth proportional to 8,989.33, 12,403.38 and 5,453.68 is: 7,524.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.33 : 12,403.38 = 5,453.68 : x
  2. Step 2: Convert to fraction form
    8,989.33/12,403.38 = 5,453.68/x
  3. Step 3: Cross multiply
    8,989.33x = 12,403.38 × 5,453.68
  4. Step 4: Simplify right side
    8,989.33x = 67,644,065.44
  5. Step 5: Solve for x
    x = 67,644,065.44/8,989.33
  6. Step 6: Final answer
    x = 7,524.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.