Home / 12,631.25-18,949.61-4,840.06

Finding the Fourth Proportional to 12,631.25, 18,949.61 and 4,840.06

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Solution

The fourth proportional to 12,631.25, 18,949.61 and 4,840.06 is: 7,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.25 : 18,949.61 = 4,840.06 : x
  2. Step 2: Convert to fraction form
    12,631.25/18,949.61 = 4,840.06/x
  3. Step 3: Cross multiply
    12,631.25x = 18,949.61 × 4,840.06
  4. Step 4: Simplify right side
    12,631.25x = 91,717,249.38
  5. Step 5: Solve for x
    x = 91,717,249.38/12,631.25
  6. Step 6: Final answer
    x = 7,261.14

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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.