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Finding the Fourth Proportional to 17,445, 26,179.02 and 8,211.72

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Solution

The fourth proportional to 17,445, 26,179.02 and 8,211.72 is: 12,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,445 : 26,179.02 = 8,211.72 : x
  2. Step 2: Convert to fraction form
    17,445/26,179.02 = 8,211.72/x
  3. Step 3: Cross multiply
    17,445x = 26,179.02 × 8,211.72
  4. Step 4: Simplify right side
    17,445x = 214,974,782.11
  5. Step 5: Solve for x
    x = 214,974,782.11/17,445
  6. Step 6: Final answer
    x = 12,323.00

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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.