Home / 12,868.05-19,303.52-4,100.97

Finding the Fourth Proportional to 12,868.05, 19,303.52 and 4,100.97

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Solution

The fourth proportional to 12,868.05, 19,303.52 and 4,100.97 is: 6,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.05 : 19,303.52 = 4,100.97 : x
  2. Step 2: Convert to fraction form
    12,868.05/19,303.52 = 4,100.97/x
  3. Step 3: Cross multiply
    12,868.05x = 19,303.52 × 4,100.97
  4. Step 4: Simplify right side
    12,868.05x = 79,163,135.91
  5. Step 5: Solve for x
    x = 79,163,135.91/12,868.05
  6. Step 6: Final answer
    x = 6,151.91

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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.