Home / 18,190.81-27,286.55-5,710.55

Finding the Fourth Proportional to 18,190.81, 27,286.55 and 5,710.55

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Solution

The fourth proportional to 18,190.81, 27,286.55 and 5,710.55 is: 8,565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.81 : 27,286.55 = 5,710.55 : x
  2. Step 2: Convert to fraction form
    18,190.81/27,286.55 = 5,710.55/x
  3. Step 3: Cross multiply
    18,190.81x = 27,286.55 × 5,710.55
  4. Step 4: Simplify right side
    18,190.81x = 155,821,208.10
  5. Step 5: Solve for x
    x = 155,821,208.10/18,190.81
  6. Step 6: Final answer
    x = 8,565.93

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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.