Home / 7,944.68-11,916.80-2,101.34

Finding the Fourth Proportional to 7,944.68, 11,916.80 and 2,101.34

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Solution

The fourth proportional to 7,944.68, 11,916.80 and 2,101.34 is: 3,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.68 : 11,916.80 = 2,101.34 : x
  2. Step 2: Convert to fraction form
    7,944.68/11,916.80 = 2,101.34/x
  3. Step 3: Cross multiply
    7,944.68x = 11,916.80 × 2,101.34
  4. Step 4: Simplify right side
    7,944.68x = 25,041,248.51
  5. Step 5: Solve for x
    x = 25,041,248.51/7,944.68
  6. Step 6: Final answer
    x = 3,151.95

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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.