Home / 8,900.72-13,344.60-4,278.32

Finding the Fourth Proportional to 8,900.72, 13,344.60 and 4,278.32

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Solution

The fourth proportional to 8,900.72, 13,344.60 and 4,278.32 is: 6,414.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.72 : 13,344.60 = 4,278.32 : x
  2. Step 2: Convert to fraction form
    8,900.72/13,344.60 = 4,278.32/x
  3. Step 3: Cross multiply
    8,900.72x = 13,344.60 × 4,278.32
  4. Step 4: Simplify right side
    8,900.72x = 57,092,469.07
  5. Step 5: Solve for x
    x = 57,092,469.07/8,900.72
  6. Step 6: Final answer
    x = 6,414.37

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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.