Home / 14,811.29-20,441.50-8,440.18

Finding the Fourth Proportional to 14,811.29, 20,441.50 and 8,440.18

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Solution

The fourth proportional to 14,811.29, 20,441.50 and 8,440.18 is: 11,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,811.29 : 20,441.50 = 8,440.18 : x
  2. Step 2: Convert to fraction form
    14,811.29/20,441.50 = 8,440.18/x
  3. Step 3: Cross multiply
    14,811.29x = 20,441.50 × 8,440.18
  4. Step 4: Simplify right side
    14,811.29x = 172,529,982.25
  5. Step 5: Solve for x
    x = 172,529,982.25/14,811.29
  6. Step 6: Final answer
    x = 11,648.55

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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.