Home / 15,936.32-21,992.40-8,862.74

Finding the Fourth Proportional to 15,936.32, 21,992.40 and 8,862.74

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Solution

The fourth proportional to 15,936.32, 21,992.40 and 8,862.74 is: 12,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.32 : 21,992.40 = 8,862.74 : x
  2. Step 2: Convert to fraction form
    15,936.32/21,992.40 = 8,862.74/x
  3. Step 3: Cross multiply
    15,936.32x = 21,992.40 × 8,862.74
  4. Step 4: Simplify right side
    15,936.32x = 194,912,862.45
  5. Step 5: Solve for x
    x = 194,912,862.45/15,936.32
  6. Step 6: Final answer
    x = 12,230.74

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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.