Home / 10,278.96-15,418.38-2,487.77

Finding the Fourth Proportional to 10,278.96, 15,418.38 and 2,487.77

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Solution

The fourth proportional to 10,278.96, 15,418.38 and 2,487.77 is: 3,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.96 : 15,418.38 = 2,487.77 : x
  2. Step 2: Convert to fraction form
    10,278.96/15,418.38 = 2,487.77/x
  3. Step 3: Cross multiply
    10,278.96x = 15,418.38 × 2,487.77
  4. Step 4: Simplify right side
    10,278.96x = 38,357,383.21
  5. Step 5: Solve for x
    x = 38,357,383.21/10,278.96
  6. Step 6: Final answer
    x = 3,731.64

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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.