Home / 11,897.92-16,418.85-6,862.15

Finding the Fourth Proportional to 11,897.92, 16,418.85 and 6,862.15

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Solution

The fourth proportional to 11,897.92, 16,418.85 and 6,862.15 is: 9,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.92 : 16,418.85 = 6,862.15 : x
  2. Step 2: Convert to fraction form
    11,897.92/16,418.85 = 6,862.15/x
  3. Step 3: Cross multiply
    11,897.92x = 16,418.85 × 6,862.15
  4. Step 4: Simplify right side
    11,897.92x = 112,668,529.43
  5. Step 5: Solve for x
    x = 112,668,529.43/11,897.92
  6. Step 6: Final answer
    x = 9,469.60

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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.