Home / 13,222.08-19,806.68-7,954.18

Finding the Fourth Proportional to 13,222.08, 19,806.68 and 7,954.18

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Solution

The fourth proportional to 13,222.08, 19,806.68 and 7,954.18 is: 11,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.08 : 19,806.68 = 7,954.18 : x
  2. Step 2: Convert to fraction form
    13,222.08/19,806.68 = 7,954.18/x
  3. Step 3: Cross multiply
    13,222.08x = 19,806.68 × 7,954.18
  4. Step 4: Simplify right side
    13,222.08x = 157,545,868.29
  5. Step 5: Solve for x
    x = 157,545,868.29/13,222.08
  6. Step 6: Final answer
    x = 11,915.36

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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.