Home / 15,837.72-21,857.58-9,549.96

Finding the Fourth Proportional to 15,837.72, 21,857.58 and 9,549.96

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Solution

The fourth proportional to 15,837.72, 21,857.58 and 9,549.96 is: 13,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.72 : 21,857.58 = 9,549.96 : x
  2. Step 2: Convert to fraction form
    15,837.72/21,857.58 = 9,549.96/x
  3. Step 3: Cross multiply
    15,837.72x = 21,857.58 × 9,549.96
  4. Step 4: Simplify right side
    15,837.72x = 208,739,014.70
  5. Step 5: Solve for x
    x = 208,739,014.70/15,837.72
  6. Step 6: Final answer
    x = 13,179.87

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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.