Home / 11,828.56-17,717.40-5,579.20

Finding the Fourth Proportional to 11,828.56, 17,717.40 and 5,579.20

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Solution

The fourth proportional to 11,828.56, 17,717.40 and 5,579.20 is: 8,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.56 : 17,717.40 = 5,579.20 : x
  2. Step 2: Convert to fraction form
    11,828.56/17,717.40 = 5,579.20/x
  3. Step 3: Cross multiply
    11,828.56x = 17,717.40 × 5,579.20
  4. Step 4: Simplify right side
    11,828.56x = 98,848,918.08
  5. Step 5: Solve for x
    x = 98,848,918.08/11,828.56
  6. Step 6: Final answer
    x = 8,356.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.