Home / 7,854.12-11,784.29-3,468.51

Finding the Fourth Proportional to 7,854.12, 11,784.29 and 3,468.51

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Solution

The fourth proportional to 7,854.12, 11,784.29 and 3,468.51 is: 5,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.12 : 11,784.29 = 3,468.51 : x
  2. Step 2: Convert to fraction form
    7,854.12/11,784.29 = 3,468.51/x
  3. Step 3: Cross multiply
    7,854.12x = 11,784.29 × 3,468.51
  4. Step 4: Simplify right side
    7,854.12x = 40,873,910.37
  5. Step 5: Solve for x
    x = 40,873,910.37/7,854.12
  6. Step 6: Final answer
    x = 5,204.14

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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.