Home / 15,936.55-21,992.11-8,862.51

Finding the Fourth Proportional to 15,936.55, 21,992.11 and 8,862.51

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Solution

The fourth proportional to 15,936.55, 21,992.11 and 8,862.51 is: 12,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.55 : 21,992.11 = 8,862.51 : x
  2. Step 2: Convert to fraction form
    15,936.55/21,992.11 = 8,862.51/x
  3. Step 3: Cross multiply
    15,936.55x = 21,992.11 × 8,862.51
  4. Step 4: Simplify right side
    15,936.55x = 194,905,355.11
  5. Step 5: Solve for x
    x = 194,905,355.11/15,936.55
  6. Step 6: Final answer
    x = 12,230.09

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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.