Home / 18,942.06-26,140.07-10,988.91

Finding the Fourth Proportional to 18,942.06, 26,140.07 and 10,988.91

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Solution

The fourth proportional to 18,942.06, 26,140.07 and 10,988.91 is: 15,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.06 : 26,140.07 = 10,988.91 : x
  2. Step 2: Convert to fraction form
    18,942.06/26,140.07 = 10,988.91/x
  3. Step 3: Cross multiply
    18,942.06x = 26,140.07 × 10,988.91
  4. Step 4: Simplify right side
    18,942.06x = 287,250,876.62
  5. Step 5: Solve for x
    x = 287,250,876.62/18,942.06
  6. Step 6: Final answer
    x = 15,164.71

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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.