Home / 18,847.11-28,274.31-7,168.53

Finding the Fourth Proportional to 18,847.11, 28,274.31 and 7,168.53

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Solution

The fourth proportional to 18,847.11, 28,274.31 and 7,168.53 is: 10,754.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.11 : 28,274.31 = 7,168.53 : x
  2. Step 2: Convert to fraction form
    18,847.11/28,274.31 = 7,168.53/x
  3. Step 3: Cross multiply
    18,847.11x = 28,274.31 × 7,168.53
  4. Step 4: Simplify right side
    18,847.11x = 202,685,239.46
  5. Step 5: Solve for x
    x = 202,685,239.46/18,847.11
  6. Step 6: Final answer
    x = 10,754.18

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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.