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Finding the Fourth Proportional to 18,337.95, 27,508.86 and 7,243.11

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Solution

The fourth proportional to 18,337.95, 27,508.86 and 7,243.11 is: 10,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.95 : 27,508.86 = 7,243.11 : x
  2. Step 2: Convert to fraction form
    18,337.95/27,508.86 = 7,243.11/x
  3. Step 3: Cross multiply
    18,337.95x = 27,508.86 × 7,243.11
  4. Step 4: Simplify right side
    18,337.95x = 199,249,698.95
  5. Step 5: Solve for x
    x = 199,249,698.95/18,337.95
  6. Step 6: Final answer
    x = 10,865.43

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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.