Home / 26,918.72-40,382.78-9,147.52

Finding the Fourth Proportional to 26,918.72, 40,382.78 and 9,147.52

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Solution

The fourth proportional to 26,918.72, 40,382.78 and 9,147.52 is: 13,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,918.72 : 40,382.78 = 9,147.52 : x
  2. Step 2: Convert to fraction form
    26,918.72/40,382.78 = 9,147.52/x
  3. Step 3: Cross multiply
    26,918.72x = 40,382.78 × 9,147.52
  4. Step 4: Simplify right side
    26,918.72x = 369,402,287.71
  5. Step 5: Solve for x
    x = 369,402,287.71/26,918.72
  6. Step 6: Final answer
    x = 13,722.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.