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Finding the Fourth Proportional to 18,292.43, 27,440.47 and 8,434.53

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Solution

The fourth proportional to 18,292.43, 27,440.47 and 8,434.53 is: 12,652.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.43 : 27,440.47 = 8,434.53 : x
  2. Step 2: Convert to fraction form
    18,292.43/27,440.47 = 8,434.53/x
  3. Step 3: Cross multiply
    18,292.43x = 27,440.47 × 8,434.53
  4. Step 4: Simplify right side
    18,292.43x = 231,447,477.97
  5. Step 5: Solve for x
    x = 231,447,477.97/18,292.43
  6. Step 6: Final answer
    x = 12,652.64

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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.