Home / 15,297.26-21,105.16-9,326.75

Finding the Fourth Proportional to 15,297.26, 21,105.16 and 9,326.75

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Solution

The fourth proportional to 15,297.26, 21,105.16 and 9,326.75 is: 12,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.26 : 21,105.16 = 9,326.75 : x
  2. Step 2: Convert to fraction form
    15,297.26/21,105.16 = 9,326.75/x
  3. Step 3: Cross multiply
    15,297.26x = 21,105.16 × 9,326.75
  4. Step 4: Simplify right side
    15,297.26x = 196,842,422.19
  5. Step 5: Solve for x
    x = 196,842,422.19/15,297.26
  6. Step 6: Final answer
    x = 12,867.83

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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.