Home / 7,890.19-11,849.06-7,272.97

Finding the Fourth Proportional to 7,890.19, 11,849.06 and 7,272.97

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Solution

The fourth proportional to 7,890.19, 11,849.06 and 7,272.97 is: 10,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.19 : 11,849.06 = 7,272.97 : x
  2. Step 2: Convert to fraction form
    7,890.19/11,849.06 = 7,272.97/x
  3. Step 3: Cross multiply
    7,890.19x = 11,849.06 × 7,272.97
  4. Step 4: Simplify right side
    7,890.19x = 86,177,762.30
  5. Step 5: Solve for x
    x = 86,177,762.30/7,890.19
  6. Step 6: Final answer
    x = 10,922.15

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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.