Home / 10,838.18-16,255.64-4,172.96

Finding the Fourth Proportional to 10,838.18, 16,255.64 and 4,172.96

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Solution

The fourth proportional to 10,838.18, 16,255.64 and 4,172.96 is: 6,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,838.18 : 16,255.64 = 4,172.96 : x
  2. Step 2: Convert to fraction form
    10,838.18/16,255.64 = 4,172.96/x
  3. Step 3: Cross multiply
    10,838.18x = 16,255.64 × 4,172.96
  4. Step 4: Simplify right side
    10,838.18x = 67,834,135.49
  5. Step 5: Solve for x
    x = 67,834,135.49/10,838.18
  6. Step 6: Final answer
    x = 6,258.81

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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.