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Finding the Fourth Proportional to 18,274.24, 25,194 and 14,279.68

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Solution

The fourth proportional to 18,274.24, 25,194 and 14,279.68 is: 19,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.24 : 25,194 = 14,279.68 : x
  2. Step 2: Convert to fraction form
    18,274.24/25,194 = 14,279.68/x
  3. Step 3: Cross multiply
    18,274.24x = 25,194 × 14,279.68
  4. Step 4: Simplify right side
    18,274.24x = 359,762,257.92
  5. Step 5: Solve for x
    x = 359,762,257.92/18,274.24
  6. Step 6: Final answer
    x = 19,686.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.