Home / 17,719.20-26,579.76-6,628.80

Finding the Fourth Proportional to 17,719.20, 26,579.76 and 6,628.80

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Solution

The fourth proportional to 17,719.20, 26,579.76 and 6,628.80 is: 9,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719.20 : 26,579.76 = 6,628.80 : x
  2. Step 2: Convert to fraction form
    17,719.20/26,579.76 = 6,628.80/x
  3. Step 3: Cross multiply
    17,719.20x = 26,579.76 × 6,628.80
  4. Step 4: Simplify right side
    17,719.20x = 176,191,913.09
  5. Step 5: Solve for x
    x = 176,191,913.09/17,719.20
  6. Step 6: Final answer
    x = 9,943.56

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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.