Home / 7,930.24-11,897.12-2,665.08

Finding the Fourth Proportional to 7,930.24, 11,897.12 and 2,665.08

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Solution

The fourth proportional to 7,930.24, 11,897.12 and 2,665.08 is: 3,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.24 : 11,897.12 = 2,665.08 : x
  2. Step 2: Convert to fraction form
    7,930.24/11,897.12 = 2,665.08/x
  3. Step 3: Cross multiply
    7,930.24x = 11,897.12 × 2,665.08
  4. Step 4: Simplify right side
    7,930.24x = 31,706,776.57
  5. Step 5: Solve for x
    x = 31,706,776.57/7,930.24
  6. Step 6: Final answer
    x = 3,998.21

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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.