Home / 18,670.11-25,759.26-11,112.65

Finding the Fourth Proportional to 18,670.11, 25,759.26 and 11,112.65

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Solution

The fourth proportional to 18,670.11, 25,759.26 and 11,112.65 is: 15,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.11 : 25,759.26 = 11,112.65 : x
  2. Step 2: Convert to fraction form
    18,670.11/25,759.26 = 11,112.65/x
  3. Step 3: Cross multiply
    18,670.11x = 25,759.26 × 11,112.65
  4. Step 4: Simplify right side
    18,670.11x = 286,253,511.84
  5. Step 5: Solve for x
    x = 286,253,511.84/18,670.11
  6. Step 6: Final answer
    x = 15,332.18

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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.