Home / 19,318.68-28,979.64-6,170.76

Finding the Fourth Proportional to 19,318.68, 28,979.64 and 6,170.76

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Solution

The fourth proportional to 19,318.68, 28,979.64 and 6,170.76 is: 9,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.68 : 28,979.64 = 6,170.76 : x
  2. Step 2: Convert to fraction form
    19,318.68/28,979.64 = 6,170.76/x
  3. Step 3: Cross multiply
    19,318.68x = 28,979.64 × 6,170.76
  4. Step 4: Simplify right side
    19,318.68x = 178,826,403.33
  5. Step 5: Solve for x
    x = 178,826,403.33/19,318.68
  6. Step 6: Final answer
    x = 9,256.66

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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.