Home / 18,845.11-28,271.31-7,166.53

Finding the Fourth Proportional to 18,845.11, 28,271.31 and 7,166.53

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Solution

The fourth proportional to 18,845.11, 28,271.31 and 7,166.53 is: 10,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.11 : 28,271.31 = 7,166.53 : x
  2. Step 2: Convert to fraction form
    18,845.11/28,271.31 = 7,166.53/x
  3. Step 3: Cross multiply
    18,845.11x = 28,271.31 × 7,166.53
  4. Step 4: Simplify right side
    18,845.11x = 202,607,191.25
  5. Step 5: Solve for x
    x = 202,607,191.25/18,845.11
  6. Step 6: Final answer
    x = 10,751.18

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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.