Home / 15,867.30-21,896.38-8,793.56

Finding the Fourth Proportional to 15,867.30, 21,896.38 and 8,793.56

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Solution

The fourth proportional to 15,867.30, 21,896.38 and 8,793.56 is: 12,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.30 : 21,896.38 = 8,793.56 : x
  2. Step 2: Convert to fraction form
    15,867.30/21,896.38 = 8,793.56/x
  3. Step 3: Cross multiply
    15,867.30x = 21,896.38 × 8,793.56
  4. Step 4: Simplify right side
    15,867.30x = 192,547,131.31
  5. Step 5: Solve for x
    x = 192,547,131.31/15,867.30
  6. Step 6: Final answer
    x = 12,134.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.