Home / 10,178.64-15,262.45-3,155.63

Finding the Fourth Proportional to 10,178.64, 15,262.45 and 3,155.63

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Solution

The fourth proportional to 10,178.64, 15,262.45 and 3,155.63 is: 4,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.64 : 15,262.45 = 3,155.63 : x
  2. Step 2: Convert to fraction form
    10,178.64/15,262.45 = 3,155.63/x
  3. Step 3: Cross multiply
    10,178.64x = 15,262.45 × 3,155.63
  4. Step 4: Simplify right side
    10,178.64x = 48,162,560.89
  5. Step 5: Solve for x
    x = 48,162,560.89/10,178.64
  6. Step 6: Final answer
    x = 4,731.73

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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.