Home / 7,224.13-9,969.30-3,912.13

Finding the Fourth Proportional to 7,224.13, 9,969.30 and 3,912.13

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Solution

The fourth proportional to 7,224.13, 9,969.30 and 3,912.13 is: 5,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.13 : 9,969.30 = 3,912.13 : x
  2. Step 2: Convert to fraction form
    7,224.13/9,969.30 = 3,912.13/x
  3. Step 3: Cross multiply
    7,224.13x = 9,969.30 × 3,912.13
  4. Step 4: Simplify right side
    7,224.13x = 39,001,197.61
  5. Step 5: Solve for x
    x = 39,001,197.61/7,224.13
  6. Step 6: Final answer
    x = 5,398.74

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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.