Home / 11,490.20-15,857.94-6,774.92

Finding the Fourth Proportional to 11,490.20, 15,857.94 and 6,774.92

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Solution

The fourth proportional to 11,490.20, 15,857.94 and 6,774.92 is: 9,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.20 : 15,857.94 = 6,774.92 : x
  2. Step 2: Convert to fraction form
    11,490.20/15,857.94 = 6,774.92/x
  3. Step 3: Cross multiply
    11,490.20x = 15,857.94 × 6,774.92
  4. Step 4: Simplify right side
    11,490.20x = 107,436,274.86
  5. Step 5: Solve for x
    x = 107,436,274.86/11,490.20
  6. Step 6: Final answer
    x = 9,350.25

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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.