Home / 7,689.08-11,533.14-2,143.22

Finding the Fourth Proportional to 7,689.08, 11,533.14 and 2,143.22

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Solution

The fourth proportional to 7,689.08, 11,533.14 and 2,143.22 is: 3,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.08 : 11,533.14 = 2,143.22 : x
  2. Step 2: Convert to fraction form
    7,689.08/11,533.14 = 2,143.22/x
  3. Step 3: Cross multiply
    7,689.08x = 11,533.14 × 2,143.22
  4. Step 4: Simplify right side
    7,689.08x = 24,717,998.65
  5. Step 5: Solve for x
    x = 24,717,998.65/7,689.08
  6. Step 6: Final answer
    x = 3,214.69

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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.