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Finding the Fourth Proportional to 17,772.88, 26,640.76 and 7,238.36

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Solution

The fourth proportional to 17,772.88, 26,640.76 and 7,238.36 is: 10,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,772.88 : 26,640.76 = 7,238.36 : x
  2. Step 2: Convert to fraction form
    17,772.88/26,640.76 = 7,238.36/x
  3. Step 3: Cross multiply
    17,772.88x = 26,640.76 × 7,238.36
  4. Step 4: Simplify right side
    17,772.88x = 192,835,411.55
  5. Step 5: Solve for x
    x = 192,835,411.55/17,772.88
  6. Step 6: Final answer
    x = 10,849.98

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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.