Home / 19,145.58-28,716.08-5,106.66

Finding the Fourth Proportional to 19,145.58, 28,716.08 and 5,106.66

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Solution

The fourth proportional to 19,145.58, 28,716.08 and 5,106.66 is: 7,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.58 : 28,716.08 = 5,106.66 : x
  2. Step 2: Convert to fraction form
    19,145.58/28,716.08 = 5,106.66/x
  3. Step 3: Cross multiply
    19,145.58x = 28,716.08 × 5,106.66
  4. Step 4: Simplify right side
    19,145.58x = 146,643,257.09
  5. Step 5: Solve for x
    x = 146,643,257.09/19,145.58
  6. Step 6: Final answer
    x = 7,659.38

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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.