Home / 10,803.78-16,205.64-4,225.35

Finding the Fourth Proportional to 10,803.78, 16,205.64 and 4,225.35

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Solution

The fourth proportional to 10,803.78, 16,205.64 and 4,225.35 is: 6,338.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.78 : 16,205.64 = 4,225.35 : x
  2. Step 2: Convert to fraction form
    10,803.78/16,205.64 = 4,225.35/x
  3. Step 3: Cross multiply
    10,803.78x = 16,205.64 × 4,225.35
  4. Step 4: Simplify right side
    10,803.78x = 68,474,500.97
  5. Step 5: Solve for x
    x = 68,474,500.97/10,803.78
  6. Step 6: Final answer
    x = 6,338.01

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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.