Home / 10,979.22-15,135.48-7,829.94

Finding the Fourth Proportional to 10,979.22, 15,135.48 and 7,829.94

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Solution

The fourth proportional to 10,979.22, 15,135.48 and 7,829.94 is: 10,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.22 : 15,135.48 = 7,829.94 : x
  2. Step 2: Convert to fraction form
    10,979.22/15,135.48 = 7,829.94/x
  3. Step 3: Cross multiply
    10,979.22x = 15,135.48 × 7,829.94
  4. Step 4: Simplify right side
    10,979.22x = 118,509,900.27
  5. Step 5: Solve for x
    x = 118,509,900.27/10,979.22
  6. Step 6: Final answer
    x = 10,794.02

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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.