Home / 7,408.16-11,101.68-5,081.12

Finding the Fourth Proportional to 7,408.16, 11,101.68 and 5,081.12

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Solution

The fourth proportional to 7,408.16, 11,101.68 and 5,081.12 is: 7,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.16 : 11,101.68 = 5,081.12 : x
  2. Step 2: Convert to fraction form
    7,408.16/11,101.68 = 5,081.12/x
  3. Step 3: Cross multiply
    7,408.16x = 11,101.68 × 5,081.12
  4. Step 4: Simplify right side
    7,408.16x = 56,408,968.28
  5. Step 5: Solve for x
    x = 56,408,968.28/7,408.16
  6. Step 6: Final answer
    x = 7,614.44

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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.