Home / 15,675.45-21,632.11-8,961.23

Finding the Fourth Proportional to 15,675.45, 21,632.11 and 8,961.23

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Solution

The fourth proportional to 15,675.45, 21,632.11 and 8,961.23 is: 12,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.45 : 21,632.11 = 8,961.23 : x
  2. Step 2: Convert to fraction form
    15,675.45/21,632.11 = 8,961.23/x
  3. Step 3: Cross multiply
    15,675.45x = 21,632.11 × 8,961.23
  4. Step 4: Simplify right side
    15,675.45x = 193,850,204.93
  5. Step 5: Solve for x
    x = 193,850,204.93/15,675.45
  6. Step 6: Final answer
    x = 12,366.48

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1.5x scale

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.