Home / 12,212.64-16,854.26-6,905.52

Finding the Fourth Proportional to 12,212.64, 16,854.26 and 6,905.52

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Solution

The fourth proportional to 12,212.64, 16,854.26 and 6,905.52 is: 9,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.64 : 16,854.26 = 6,905.52 : x
  2. Step 2: Convert to fraction form
    12,212.64/16,854.26 = 6,905.52/x
  3. Step 3: Cross multiply
    12,212.64x = 16,854.26 × 6,905.52
  4. Step 4: Simplify right side
    12,212.64x = 116,387,429.52
  5. Step 5: Solve for x
    x = 116,387,429.52/12,212.64
  6. Step 6: Final answer
    x = 9,530.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.