Home / 18,198.55-27,281.59-7,102.66

Finding the Fourth Proportional to 18,198.55, 27,281.59 and 7,102.66

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Solution

The fourth proportional to 18,198.55, 27,281.59 and 7,102.66 is: 10,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.55 : 27,281.59 = 7,102.66 : x
  2. Step 2: Convert to fraction form
    18,198.55/27,281.59 = 7,102.66/x
  3. Step 3: Cross multiply
    18,198.55x = 27,281.59 × 7,102.66
  4. Step 4: Simplify right side
    18,198.55x = 193,771,822.52
  5. Step 5: Solve for x
    x = 193,771,822.52/18,198.55
  6. Step 6: Final answer
    x = 10,647.65

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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.