Home / 7,418.70-11,111.85-3,253.14

Finding the Fourth Proportional to 7,418.70, 11,111.85 and 3,253.14

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Solution

The fourth proportional to 7,418.70, 11,111.85 and 3,253.14 is: 4,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.70 : 11,111.85 = 3,253.14 : x
  2. Step 2: Convert to fraction form
    7,418.70/11,111.85 = 3,253.14/x
  3. Step 3: Cross multiply
    7,418.70x = 11,111.85 × 3,253.14
  4. Step 4: Simplify right side
    7,418.70x = 36,148,403.71
  5. Step 5: Solve for x
    x = 36,148,403.71/7,418.70
  6. Step 6: Final answer
    x = 4,872.61

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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.