Home / 7,408.32-11,112.48-3,715.08

Finding the Fourth Proportional to 7,408.32, 11,112.48 and 3,715.08

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Solution

The fourth proportional to 7,408.32, 11,112.48 and 3,715.08 is: 5,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.32 : 11,112.48 = 3,715.08 : x
  2. Step 2: Convert to fraction form
    7,408.32/11,112.48 = 3,715.08/x
  3. Step 3: Cross multiply
    7,408.32x = 11,112.48 × 3,715.08
  4. Step 4: Simplify right side
    7,408.32x = 41,283,752.20
  5. Step 5: Solve for x
    x = 41,283,752.20/7,408.32
  6. Step 6: Final answer
    x = 5,572.62

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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.