Home / 15,679.56-21,637.69-8,606.04

Finding the Fourth Proportional to 15,679.56, 21,637.69 and 8,606.04

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Solution

The fourth proportional to 15,679.56, 21,637.69 and 8,606.04 is: 11,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.56 : 21,637.69 = 8,606.04 : x
  2. Step 2: Convert to fraction form
    15,679.56/21,637.69 = 8,606.04/x
  3. Step 3: Cross multiply
    15,679.56x = 21,637.69 × 8,606.04
  4. Step 4: Simplify right side
    15,679.56x = 186,214,825.65
  5. Step 5: Solve for x
    x = 186,214,825.65/15,679.56
  6. Step 6: Final answer
    x = 11,876.28

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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.