Home / 18,274.45-27,411.78-5,126.80

Finding the Fourth Proportional to 18,274.45, 27,411.78 and 5,126.80

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Solution

The fourth proportional to 18,274.45, 27,411.78 and 5,126.80 is: 7,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.45 : 27,411.78 = 5,126.80 : x
  2. Step 2: Convert to fraction form
    18,274.45/27,411.78 = 5,126.80/x
  3. Step 3: Cross multiply
    18,274.45x = 27,411.78 × 5,126.80
  4. Step 4: Simplify right side
    18,274.45x = 140,534,713.70
  5. Step 5: Solve for x
    x = 140,534,713.70/18,274.45
  6. Step 6: Final answer
    x = 7,690.23

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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.