Home / 18,422.16-27,632.61-5,274.42

Finding the Fourth Proportional to 18,422.16, 27,632.61 and 5,274.42

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Solution

The fourth proportional to 18,422.16, 27,632.61 and 5,274.42 is: 7,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.16 : 27,632.61 = 5,274.42 : x
  2. Step 2: Convert to fraction form
    18,422.16/27,632.61 = 5,274.42/x
  3. Step 3: Cross multiply
    18,422.16x = 27,632.61 × 5,274.42
  4. Step 4: Simplify right side
    18,422.16x = 145,745,990.84
  5. Step 5: Solve for x
    x = 145,745,990.84/18,422.16
  6. Step 6: Final answer
    x = 7,911.45

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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.