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Finding the Fourth Proportional to 18,279.66, 27,263.54 and 17,963.76

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Solution

The fourth proportional to 18,279.66, 27,263.54 and 17,963.76 is: 26,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.66 : 27,263.54 = 17,963.76 : x
  2. Step 2: Convert to fraction form
    18,279.66/27,263.54 = 17,963.76/x
  3. Step 3: Cross multiply
    18,279.66x = 27,263.54 × 17,963.76
  4. Step 4: Simplify right side
    18,279.66x = 489,755,689.31
  5. Step 5: Solve for x
    x = 489,755,689.31/18,279.66
  6. Step 6: Final answer
    x = 26,792.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.