Home / 14,680.80-21,975.12-10,961.76

Finding the Fourth Proportional to 14,680.80, 21,975.12 and 10,961.76

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Solution

The fourth proportional to 14,680.80, 21,975.12 and 10,961.76 is: 16,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680.80 : 21,975.12 = 10,961.76 : x
  2. Step 2: Convert to fraction form
    14,680.80/21,975.12 = 10,961.76/x
  3. Step 3: Cross multiply
    14,680.80x = 21,975.12 × 10,961.76
  4. Step 4: Simplify right side
    14,680.80x = 240,885,991.41
  5. Step 5: Solve for x
    x = 240,885,991.41/14,680.80
  6. Step 6: Final answer
    x = 16,408.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.