Home / 10,356.22-15,528.78-4,115.98

Finding the Fourth Proportional to 10,356.22, 15,528.78 and 4,115.98

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Solution

The fourth proportional to 10,356.22, 15,528.78 and 4,115.98 is: 6,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.22 : 15,528.78 = 4,115.98 : x
  2. Step 2: Convert to fraction form
    10,356.22/15,528.78 = 4,115.98/x
  3. Step 3: Cross multiply
    10,356.22x = 15,528.78 × 4,115.98
  4. Step 4: Simplify right side
    10,356.22x = 63,916,147.90
  5. Step 5: Solve for x
    x = 63,916,147.90/10,356.22
  6. Step 6: Final answer
    x = 6,171.76

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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.