Home / 18,723.62-28,089.11-6,243.48

Finding the Fourth Proportional to 18,723.62, 28,089.11 and 6,243.48

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Solution

The fourth proportional to 18,723.62, 28,089.11 and 6,243.48 is: 9,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.62 : 28,089.11 = 6,243.48 : x
  2. Step 2: Convert to fraction form
    18,723.62/28,089.11 = 6,243.48/x
  3. Step 3: Cross multiply
    18,723.62x = 28,089.11 × 6,243.48
  4. Step 4: Simplify right side
    18,723.62x = 175,373,812.11
  5. Step 5: Solve for x
    x = 175,373,812.11/18,723.62
  6. Step 6: Final answer
    x = 9,366.45

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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.