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Finding the Fourth Proportional to 17,640.72, 26,448.48 and 8,275.50

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Solution

The fourth proportional to 17,640.72, 26,448.48 and 8,275.50 is: 12,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.72 : 26,448.48 = 8,275.50 : x
  2. Step 2: Convert to fraction form
    17,640.72/26,448.48 = 8,275.50/x
  3. Step 3: Cross multiply
    17,640.72x = 26,448.48 × 8,275.50
  4. Step 4: Simplify right side
    17,640.72x = 218,874,396.24
  5. Step 5: Solve for x
    x = 218,874,396.24/17,640.72
  6. Step 6: Final answer
    x = 12,407.34

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1.5x scale

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.