Home / 13,222.24-19,807.20-9,939.04

Finding the Fourth Proportional to 13,222.24, 19,807.20 and 9,939.04

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Solution

The fourth proportional to 13,222.24, 19,807.20 and 9,939.04 is: 14,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.24 : 19,807.20 = 9,939.04 : x
  2. Step 2: Convert to fraction form
    13,222.24/19,807.20 = 9,939.04/x
  3. Step 3: Cross multiply
    13,222.24x = 19,807.20 × 9,939.04
  4. Step 4: Simplify right side
    13,222.24x = 196,864,553.09
  5. Step 5: Solve for x
    x = 196,864,553.09/13,222.24
  6. Step 6: Final answer
    x = 14,888.90

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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.