Home / 12,739.80-19,098.81-4,837.89

Finding the Fourth Proportional to 12,739.80, 19,098.81 and 4,837.89

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Solution

The fourth proportional to 12,739.80, 19,098.81 and 4,837.89 is: 7,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.80 : 19,098.81 = 4,837.89 : x
  2. Step 2: Convert to fraction form
    12,739.80/19,098.81 = 4,837.89/x
  3. Step 3: Cross multiply
    12,739.80x = 19,098.81 × 4,837.89
  4. Step 4: Simplify right side
    12,739.80x = 92,397,941.91
  5. Step 5: Solve for x
    x = 92,397,941.91/12,739.80
  6. Step 6: Final answer
    x = 7,252.70

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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.