Home / 11,910.52-16,436.40-6,874.28

Finding the Fourth Proportional to 11,910.52, 16,436.40 and 6,874.28

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Solution

The fourth proportional to 11,910.52, 16,436.40 and 6,874.28 is: 9,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.52 : 16,436.40 = 6,874.28 : x
  2. Step 2: Convert to fraction form
    11,910.52/16,436.40 = 6,874.28/x
  3. Step 3: Cross multiply
    11,910.52x = 16,436.40 × 6,874.28
  4. Step 4: Simplify right side
    11,910.52x = 112,988,415.79
  5. Step 5: Solve for x
    x = 112,988,415.79/11,910.52
  6. Step 6: Final answer
    x = 9,486.44

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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.