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Finding the Fourth Proportional to 11,894.92, 16,417.28 and 6,862.39

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Solution

The fourth proportional to 11,894.92, 16,417.28 and 6,862.39 is: 9,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.92 : 16,417.28 = 6,862.39 : x
  2. Step 2: Convert to fraction form
    11,894.92/16,417.28 = 6,862.39/x
  3. Step 3: Cross multiply
    11,894.92x = 16,417.28 × 6,862.39
  4. Step 4: Simplify right side
    11,894.92x = 112,661,754.21
  5. Step 5: Solve for x
    x = 112,661,754.21/11,894.92
  6. Step 6: Final answer
    x = 9,471.42

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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.