Home / 6,979.34-10,446.26-5,129.97

Finding the Fourth Proportional to 6,979.34, 10,446.26 and 5,129.97

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Solution

The fourth proportional to 6,979.34, 10,446.26 and 5,129.97 is: 7,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.34 : 10,446.26 = 5,129.97 : x
  2. Step 2: Convert to fraction form
    6,979.34/10,446.26 = 5,129.97/x
  3. Step 3: Cross multiply
    6,979.34x = 10,446.26 × 5,129.97
  4. Step 4: Simplify right side
    6,979.34x = 53,588,974.76
  5. Step 5: Solve for x
    x = 53,588,974.76/6,979.34
  6. Step 6: Final answer
    x = 7,678.24

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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.