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Finding the Fourth Proportional to 18,340.62, 27,510.93 and 5,193.11

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Solution

The fourth proportional to 18,340.62, 27,510.93 and 5,193.11 is: 7,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.62 : 27,510.93 = 5,193.11 : x
  2. Step 2: Convert to fraction form
    18,340.62/27,510.93 = 5,193.11/x
  3. Step 3: Cross multiply
    18,340.62x = 27,510.93 × 5,193.11
  4. Step 4: Simplify right side
    18,340.62x = 142,867,148.14
  5. Step 5: Solve for x
    x = 142,867,148.14/18,340.62
  6. Step 6: Final answer
    x = 7,789.66

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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.