Home / 11,579.40-15,979.41-6,798.49

Finding the Fourth Proportional to 11,579.40, 15,979.41 and 6,798.49

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Solution

The fourth proportional to 11,579.40, 15,979.41 and 6,798.49 is: 9,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.40 : 15,979.41 = 6,798.49 : x
  2. Step 2: Convert to fraction form
    11,579.40/15,979.41 = 6,798.49/x
  3. Step 3: Cross multiply
    11,579.40x = 15,979.41 × 6,798.49
  4. Step 4: Simplify right side
    11,579.40x = 108,635,819.14
  5. Step 5: Solve for x
    x = 108,635,819.14/11,579.40
  6. Step 6: Final answer
    x = 9,381.82

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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.