Home / 15,003.63-20,704.91-8,289.23

Finding the Fourth Proportional to 15,003.63, 20,704.91 and 8,289.23

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Solution

The fourth proportional to 15,003.63, 20,704.91 and 8,289.23 is: 11,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.63 : 20,704.91 = 8,289.23 : x
  2. Step 2: Convert to fraction form
    15,003.63/20,704.91 = 8,289.23/x
  3. Step 3: Cross multiply
    15,003.63x = 20,704.91 × 8,289.23
  4. Step 4: Simplify right side
    15,003.63x = 171,627,616.15
  5. Step 5: Solve for x
    x = 171,627,616.15/15,003.63
  6. Step 6: Final answer
    x = 11,439.07

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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.