Home / 9,451.66-13,020.72-6,613.75

Finding the Fourth Proportional to 9,451.66, 13,020.72 and 6,613.75

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Solution

The fourth proportional to 9,451.66, 13,020.72 and 6,613.75 is: 9,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,451.66 : 13,020.72 = 6,613.75 : x
  2. Step 2: Convert to fraction form
    9,451.66/13,020.72 = 6,613.75/x
  3. Step 3: Cross multiply
    9,451.66x = 13,020.72 × 6,613.75
  4. Step 4: Simplify right side
    9,451.66x = 86,115,786.90
  5. Step 5: Solve for x
    x = 86,115,786.90/9,451.66
  6. Step 6: Final answer
    x = 9,111.18

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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.