Home / 17,638.06-26,440.19-6,541.78

Finding the Fourth Proportional to 17,638.06, 26,440.19 and 6,541.78

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Solution

The fourth proportional to 17,638.06, 26,440.19 and 6,541.78 is: 9,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.06 : 26,440.19 = 6,541.78 : x
  2. Step 2: Convert to fraction form
    17,638.06/26,440.19 = 6,541.78/x
  3. Step 3: Cross multiply
    17,638.06x = 26,440.19 × 6,541.78
  4. Step 4: Simplify right side
    17,638.06x = 172,965,906.14
  5. Step 5: Solve for x
    x = 172,965,906.14/17,638.06
  6. Step 6: Final answer
    x = 9,806.40

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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.