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Finding the Fourth Proportional to 18,225.87, 27,338.80 and 4,374.87

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Solution

The fourth proportional to 18,225.87, 27,338.80 and 4,374.87 is: 6,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.87 : 27,338.80 = 4,374.87 : x
  2. Step 2: Convert to fraction form
    18,225.87/27,338.80 = 4,374.87/x
  3. Step 3: Cross multiply
    18,225.87x = 27,338.80 × 4,374.87
  4. Step 4: Simplify right side
    18,225.87x = 119,603,548.32
  5. Step 5: Solve for x
    x = 119,603,548.32/18,225.87
  6. Step 6: Final answer
    x = 6,562.30

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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.