Home / 7,876.11-10,868.62-4,339.24

Finding the Fourth Proportional to 7,876.11, 10,868.62 and 4,339.24

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Solution

The fourth proportional to 7,876.11, 10,868.62 and 4,339.24 is: 5,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.11 : 10,868.62 = 4,339.24 : x
  2. Step 2: Convert to fraction form
    7,876.11/10,868.62 = 4,339.24/x
  3. Step 3: Cross multiply
    7,876.11x = 10,868.62 × 4,339.24
  4. Step 4: Simplify right side
    7,876.11x = 47,161,550.65
  5. Step 5: Solve for x
    x = 47,161,550.65/7,876.11
  6. Step 6: Final answer
    x = 5,987.92

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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.