Home / 7,920.32-11,874.16-3,758.24

Finding the Fourth Proportional to 7,920.32, 11,874.16 and 3,758.24

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Solution

The fourth proportional to 7,920.32, 11,874.16 and 3,758.24 is: 5,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.32 : 11,874.16 = 3,758.24 : x
  2. Step 2: Convert to fraction form
    7,920.32/11,874.16 = 3,758.24/x
  3. Step 3: Cross multiply
    7,920.32x = 11,874.16 × 3,758.24
  4. Step 4: Simplify right side
    7,920.32x = 44,625,943.08
  5. Step 5: Solve for x
    x = 44,625,943.08/7,920.32
  6. Step 6: Final answer
    x = 5,634.36

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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.