Home / 11,199.65-15,450.34-7,222.04

Finding the Fourth Proportional to 11,199.65, 15,450.34 and 7,222.04

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Solution

The fourth proportional to 11,199.65, 15,450.34 and 7,222.04 is: 9,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.65 : 15,450.34 = 7,222.04 : x
  2. Step 2: Convert to fraction form
    11,199.65/15,450.34 = 7,222.04/x
  3. Step 3: Cross multiply
    11,199.65x = 15,450.34 × 7,222.04
  4. Step 4: Simplify right side
    11,199.65x = 111,582,973.49
  5. Step 5: Solve for x
    x = 111,582,973.49/11,199.65
  6. Step 6: Final answer
    x = 9,963.08

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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.