Home / 12,867.31-19,296.87-6,626.51

Finding the Fourth Proportional to 12,867.31, 19,296.87 and 6,626.51

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Solution

The fourth proportional to 12,867.31, 19,296.87 and 6,626.51 is: 9,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.31 : 19,296.87 = 6,626.51 : x
  2. Step 2: Convert to fraction form
    12,867.31/19,296.87 = 6,626.51/x
  3. Step 3: Cross multiply
    12,867.31x = 19,296.87 × 6,626.51
  4. Step 4: Simplify right side
    12,867.31x = 127,870,853.05
  5. Step 5: Solve for x
    x = 127,870,853.05/12,867.31
  6. Step 6: Final answer
    x = 9,937.65

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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.