Home / 6,920.15-10,391.16-5,465.79

Finding the Fourth Proportional to 6,920.15, 10,391.16 and 5,465.79

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Solution

The fourth proportional to 6,920.15, 10,391.16 and 5,465.79 is: 8,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.15 : 10,391.16 = 5,465.79 : x
  2. Step 2: Convert to fraction form
    6,920.15/10,391.16 = 5,465.79/x
  3. Step 3: Cross multiply
    6,920.15x = 10,391.16 × 5,465.79
  4. Step 4: Simplify right side
    6,920.15x = 56,795,898.42
  5. Step 5: Solve for x
    x = 56,795,898.42/6,920.15
  6. Step 6: Final answer
    x = 8,207.33

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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.