Home / 15,936.21-21,991.66-8,862.48

Finding the Fourth Proportional to 15,936.21, 21,991.66 and 8,862.48

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Solution

The fourth proportional to 15,936.21, 21,991.66 and 8,862.48 is: 12,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.21 : 21,991.66 = 8,862.48 : x
  2. Step 2: Convert to fraction form
    15,936.21/21,991.66 = 8,862.48/x
  3. Step 3: Cross multiply
    15,936.21x = 21,991.66 × 8,862.48
  4. Step 4: Simplify right side
    15,936.21x = 194,900,624.76
  5. Step 5: Solve for x
    x = 194,900,624.76/15,936.21
  6. Step 6: Final answer
    x = 12,230.05

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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.