Home / 7,948.06-11,921.55-2,104.18

Finding the Fourth Proportional to 7,948.06, 11,921.55 and 2,104.18

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Solution

The fourth proportional to 7,948.06, 11,921.55 and 2,104.18 is: 3,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.06 : 11,921.55 = 2,104.18 : x
  2. Step 2: Convert to fraction form
    7,948.06/11,921.55 = 2,104.18/x
  3. Step 3: Cross multiply
    7,948.06x = 11,921.55 × 2,104.18
  4. Step 4: Simplify right side
    7,948.06x = 25,085,087.08
  5. Step 5: Solve for x
    x = 25,085,087.08/7,948.06
  6. Step 6: Final answer
    x = 3,156.13

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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.