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Finding the Fourth Proportional to 13,362.68, 20,064.25 and 10,611.65

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Solution

The fourth proportional to 13,362.68, 20,064.25 and 10,611.65 is: 15,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.68 : 20,064.25 = 10,611.65 : x
  2. Step 2: Convert to fraction form
    13,362.68/20,064.25 = 10,611.65/x
  3. Step 3: Cross multiply
    13,362.68x = 20,064.25 × 10,611.65
  4. Step 4: Simplify right side
    13,362.68x = 212,914,861.94
  5. Step 5: Solve for x
    x = 212,914,861.94/13,362.68
  6. Step 6: Final answer
    x = 15,933.55

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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.