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Finding the Fourth Proportional to 15,019.75, 22,529.63 and 6,811.75

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Solution

The fourth proportional to 15,019.75, 22,529.63 and 6,811.75 is: 10,217.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.75 : 22,529.63 = 6,811.75 : x
  2. Step 2: Convert to fraction form
    15,019.75/22,529.63 = 6,811.75/x
  3. Step 3: Cross multiply
    15,019.75x = 22,529.63 × 6,811.75
  4. Step 4: Simplify right side
    15,019.75x = 153,466,207.15
  5. Step 5: Solve for x
    x = 153,466,207.15/15,019.75
  6. Step 6: Final answer
    x = 10,217.63

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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.