Home / 26,636.47-39,947.78-7,912.10

Finding the Fourth Proportional to 26,636.47, 39,947.78 and 7,912.10

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Solution

The fourth proportional to 26,636.47, 39,947.78 and 7,912.10 is: 11,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,636.47 : 39,947.78 = 7,912.10 : x
  2. Step 2: Convert to fraction form
    26,636.47/39,947.78 = 7,912.10/x
  3. Step 3: Cross multiply
    26,636.47x = 39,947.78 × 7,912.10
  4. Step 4: Simplify right side
    26,636.47x = 316,070,949.79
  5. Step 5: Solve for x
    x = 316,070,949.79/26,636.47
  6. Step 6: Final answer
    x = 11,866.10

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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.