Home / 7,854.52-11,778.58-3,904.36

Finding the Fourth Proportional to 7,854.52, 11,778.58 and 3,904.36

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Solution

The fourth proportional to 7,854.52, 11,778.58 and 3,904.36 is: 5,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.52 : 11,778.58 = 3,904.36 : x
  2. Step 2: Convert to fraction form
    7,854.52/11,778.58 = 3,904.36/x
  3. Step 3: Cross multiply
    7,854.52x = 11,778.58 × 3,904.36
  4. Step 4: Simplify right side
    7,854.52x = 45,987,816.61
  5. Step 5: Solve for x
    x = 45,987,816.61/7,854.52
  6. Step 6: Final answer
    x = 5,854.95

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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.