Home / 6,895-9,514.38-3,909.88

Finding the Fourth Proportional to 6,895, 9,514.38 and 3,909.88

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Solution

The fourth proportional to 6,895, 9,514.38 and 3,909.88 is: 5,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,895 : 9,514.38 = 3,909.88 : x
  2. Step 2: Convert to fraction form
    6,895/9,514.38 = 3,909.88/x
  3. Step 3: Cross multiply
    6,895x = 9,514.38 × 3,909.88
  4. Step 4: Simplify right side
    6,895x = 37,200,084.07
  5. Step 5: Solve for x
    x = 37,200,084.07/6,895
  6. Step 6: Final answer
    x = 5,395.23

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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.