Home / 7,948.17-11,920.64-3,998.34

Finding the Fourth Proportional to 7,948.17, 11,920.64 and 3,998.34

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Solution

The fourth proportional to 7,948.17, 11,920.64 and 3,998.34 is: 5,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.17 : 11,920.64 = 3,998.34 : x
  2. Step 2: Convert to fraction form
    7,948.17/11,920.64 = 3,998.34/x
  3. Step 3: Cross multiply
    7,948.17x = 11,920.64 × 3,998.34
  4. Step 4: Simplify right side
    7,948.17x = 47,662,751.75
  5. Step 5: Solve for x
    x = 47,662,751.75/7,948.17
  6. Step 6: Final answer
    x = 5,996.70

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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.