Home / 17,618.78-26,439.60-7,633.28

Finding the Fourth Proportional to 17,618.78, 26,439.60 and 7,633.28

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Solution

The fourth proportional to 17,618.78, 26,439.60 and 7,633.28 is: 11,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.78 : 26,439.60 = 7,633.28 : x
  2. Step 2: Convert to fraction form
    17,618.78/26,439.60 = 7,633.28/x
  3. Step 3: Cross multiply
    17,618.78x = 26,439.60 × 7,633.28
  4. Step 4: Simplify right side
    17,618.78x = 201,820,869.89
  5. Step 5: Solve for x
    x = 201,820,869.89/17,618.78
  6. Step 6: Final answer
    x = 11,454.87

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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.