Home / 15,675.24-21,631.08-8,961.96

Finding the Fourth Proportional to 15,675.24, 21,631.08 and 8,961.96

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Solution

The fourth proportional to 15,675.24, 21,631.08 and 8,961.96 is: 12,367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.24 : 21,631.08 = 8,961.96 : x
  2. Step 2: Convert to fraction form
    15,675.24/21,631.08 = 8,961.96/x
  3. Step 3: Cross multiply
    15,675.24x = 21,631.08 × 8,961.96
  4. Step 4: Simplify right side
    15,675.24x = 193,856,873.72
  5. Step 5: Solve for x
    x = 193,856,873.72/15,675.24
  6. Step 6: Final answer
    x = 12,367.08

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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.