Home / 12,951.08-19,426.62-5,159.96

Finding the Fourth Proportional to 12,951.08, 19,426.62 and 5,159.96

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Solution

The fourth proportional to 12,951.08, 19,426.62 and 5,159.96 is: 7,739.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.08 : 19,426.62 = 5,159.96 : x
  2. Step 2: Convert to fraction form
    12,951.08/19,426.62 = 5,159.96/x
  3. Step 3: Cross multiply
    12,951.08x = 19,426.62 × 5,159.96
  4. Step 4: Simplify right side
    12,951.08x = 100,240,582.14
  5. Step 5: Solve for x
    x = 100,240,582.14/12,951.08
  6. Step 6: Final answer
    x = 7,739.94

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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.