Home / 12,224.24-18,345.58-8,945.80

Finding the Fourth Proportional to 12,224.24, 18,345.58 and 8,945.80

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Solution

The fourth proportional to 12,224.24, 18,345.58 and 8,945.80 is: 13,425.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.24 : 18,345.58 = 8,945.80 : x
  2. Step 2: Convert to fraction form
    12,224.24/18,345.58 = 8,945.80/x
  3. Step 3: Cross multiply
    12,224.24x = 18,345.58 × 8,945.80
  4. Step 4: Simplify right side
    12,224.24x = 164,115,889.56
  5. Step 5: Solve for x
    x = 164,115,889.56/12,224.24
  6. Step 6: Final answer
    x = 13,425.45

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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.