Home / 12,224.24-18,311.73-8,480.36

Finding the Fourth Proportional to 12,224.24, 18,311.73 and 8,480.36

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Solution

The fourth proportional to 12,224.24, 18,311.73 and 8,480.36 is: 12,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.24 : 18,311.73 = 8,480.36 : x
  2. Step 2: Convert to fraction form
    12,224.24/18,311.73 = 8,480.36/x
  3. Step 3: Cross multiply
    12,224.24x = 18,311.73 × 8,480.36
  4. Step 4: Simplify right side
    12,224.24x = 155,289,971.06
  5. Step 5: Solve for x
    x = 155,289,971.06/12,224.24
  6. Step 6: Final answer
    x = 12,703.45

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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.