Home / 7,488.36-11,218.08-4,191.42

Finding the Fourth Proportional to 7,488.36, 11,218.08 and 4,191.42

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Solution

The fourth proportional to 7,488.36, 11,218.08 and 4,191.42 is: 6,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.36 : 11,218.08 = 4,191.42 : x
  2. Step 2: Convert to fraction form
    7,488.36/11,218.08 = 4,191.42/x
  3. Step 3: Cross multiply
    7,488.36x = 11,218.08 × 4,191.42
  4. Step 4: Simplify right side
    7,488.36x = 47,019,684.87
  5. Step 5: Solve for x
    x = 47,019,684.87/7,488.36
  6. Step 6: Final answer
    x = 6,279.04

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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.