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Finding the Fourth Proportional to 10,007.53, 15,012.05 and 2,986.99

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Solution

The fourth proportional to 10,007.53, 15,012.05 and 2,986.99 is: 4,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.53 : 15,012.05 = 2,986.99 : x
  2. Step 2: Convert to fraction form
    10,007.53/15,012.05 = 2,986.99/x
  3. Step 3: Cross multiply
    10,007.53x = 15,012.05 × 2,986.99
  4. Step 4: Simplify right side
    10,007.53x = 44,840,843.23
  5. Step 5: Solve for x
    x = 44,840,843.23/10,007.53
  6. Step 6: Final answer
    x = 4,480.71

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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.