Home / 8,260.12-11,408.42-5,440.10

Finding the Fourth Proportional to 8,260.12, 11,408.42 and 5,440.10

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Solution

The fourth proportional to 8,260.12, 11,408.42 and 5,440.10 is: 7,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.12 : 11,408.42 = 5,440.10 : x
  2. Step 2: Convert to fraction form
    8,260.12/11,408.42 = 5,440.10/x
  3. Step 3: Cross multiply
    8,260.12x = 11,408.42 × 5,440.10
  4. Step 4: Simplify right side
    8,260.12x = 62,062,945.64
  5. Step 5: Solve for x
    x = 62,062,945.64/8,260.12
  6. Step 6: Final answer
    x = 7,513.56

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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.