Home / 9,118.06-13,681.19-5,613.39

Finding the Fourth Proportional to 9,118.06, 13,681.19 and 5,613.39

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Solution

The fourth proportional to 9,118.06, 13,681.19 and 5,613.39 is: 8,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.06 : 13,681.19 = 5,613.39 : x
  2. Step 2: Convert to fraction form
    9,118.06/13,681.19 = 5,613.39/x
  3. Step 3: Cross multiply
    9,118.06x = 13,681.19 × 5,613.39
  4. Step 4: Simplify right side
    9,118.06x = 76,797,855.13
  5. Step 5: Solve for x
    x = 76,797,855.13/9,118.06
  6. Step 6: Final answer
    x = 8,422.61

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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.