Home / 12,215.52-16,858.08-6,910.56

Finding the Fourth Proportional to 12,215.52, 16,858.08 and 6,910.56

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Solution

The fourth proportional to 12,215.52, 16,858.08 and 6,910.56 is: 9,536.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.52 : 16,858.08 = 6,910.56 : x
  2. Step 2: Convert to fraction form
    12,215.52/16,858.08 = 6,910.56/x
  3. Step 3: Cross multiply
    12,215.52x = 16,858.08 × 6,910.56
  4. Step 4: Simplify right side
    12,215.52x = 116,498,773.32
  5. Step 5: Solve for x
    x = 116,498,773.32/12,215.52
  6. Step 6: Final answer
    x = 9,536.95

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1.5x scale

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.