Home / 15,101.06-20,842.13-11,291.81

Finding the Fourth Proportional to 15,101.06, 20,842.13 and 11,291.81

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Solution

The fourth proportional to 15,101.06, 20,842.13 and 11,291.81 is: 15,584.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,101.06 : 20,842.13 = 11,291.81 : x
  2. Step 2: Convert to fraction form
    15,101.06/20,842.13 = 11,291.81/x
  3. Step 3: Cross multiply
    15,101.06x = 20,842.13 × 11,291.81
  4. Step 4: Simplify right side
    15,101.06x = 235,345,295.97
  5. Step 5: Solve for x
    x = 235,345,295.97/15,101.06
  6. Step 6: Final answer
    x = 15,584.69

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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.