Home / 15,007.28-20,704.82-9,338.69

Finding the Fourth Proportional to 15,007.28, 20,704.82 and 9,338.69

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Solution

The fourth proportional to 15,007.28, 20,704.82 and 9,338.69 is: 12,884.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.28 : 20,704.82 = 9,338.69 : x
  2. Step 2: Convert to fraction form
    15,007.28/20,704.82 = 9,338.69/x
  3. Step 3: Cross multiply
    15,007.28x = 20,704.82 × 9,338.69
  4. Step 4: Simplify right side
    15,007.28x = 193,355,900.55
  5. Step 5: Solve for x
    x = 193,355,900.55/15,007.28
  6. Step 6: Final answer
    x = 12,884.14

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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.