Home / 15,003.26-20,704.69-8,289.18

Finding the Fourth Proportional to 15,003.26, 20,704.69 and 8,289.18

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Solution

The fourth proportional to 15,003.26, 20,704.69 and 8,289.18 is: 11,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.26 : 20,704.69 = 8,289.18 : x
  2. Step 2: Convert to fraction form
    15,003.26/20,704.69 = 8,289.18/x
  3. Step 3: Cross multiply
    15,003.26x = 20,704.69 × 8,289.18
  4. Step 4: Simplify right side
    15,003.26x = 171,624,902.25
  5. Step 5: Solve for x
    x = 171,624,902.25/15,003.26
  6. Step 6: Final answer
    x = 11,439.17

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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.