Home / 8,645.13-11,918.25-7,306.29

Finding the Fourth Proportional to 8,645.13, 11,918.25 and 7,306.29

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Solution

The fourth proportional to 8,645.13, 11,918.25 and 7,306.29 is: 10,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.13 : 11,918.25 = 7,306.29 : x
  2. Step 2: Convert to fraction form
    8,645.13/11,918.25 = 7,306.29/x
  3. Step 3: Cross multiply
    8,645.13x = 11,918.25 × 7,306.29
  4. Step 4: Simplify right side
    8,645.13x = 87,078,190.79
  5. Step 5: Solve for x
    x = 87,078,190.79/8,645.13
  6. Step 6: Final answer
    x = 10,072.51

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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.