Home / 15,936.48-21,992.28-8,862.96

Finding the Fourth Proportional to 15,936.48, 21,992.28 and 8,862.96

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Solution

The fourth proportional to 15,936.48, 21,992.28 and 8,862.96 is: 12,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.48 : 21,992.28 = 8,862.96 : x
  2. Step 2: Convert to fraction form
    15,936.48/21,992.28 = 8,862.96/x
  3. Step 3: Cross multiply
    15,936.48x = 21,992.28 × 8,862.96
  4. Step 4: Simplify right side
    15,936.48x = 194,916,697.95
  5. Step 5: Solve for x
    x = 194,916,697.95/15,936.48
  6. Step 6: Final answer
    x = 12,230.85

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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.