Home / 11,782.97-16,260.55-6,478.13

Finding the Fourth Proportional to 11,782.97, 16,260.55 and 6,478.13

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Solution

The fourth proportional to 11,782.97, 16,260.55 and 6,478.13 is: 8,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.97 : 16,260.55 = 6,478.13 : x
  2. Step 2: Convert to fraction form
    11,782.97/16,260.55 = 6,478.13/x
  3. Step 3: Cross multiply
    11,782.97x = 16,260.55 × 6,478.13
  4. Step 4: Simplify right side
    11,782.97x = 105,337,859.27
  5. Step 5: Solve for x
    x = 105,337,859.27/11,782.97
  6. Step 6: Final answer
    x = 8,939.84

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Double scale
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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.