Home / 10,979.56-16,469.36-5,140.27

Finding the Fourth Proportional to 10,979.56, 16,469.36 and 5,140.27

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Solution

The fourth proportional to 10,979.56, 16,469.36 and 5,140.27 is: 7,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.56 : 16,469.36 = 5,140.27 : x
  2. Step 2: Convert to fraction form
    10,979.56/16,469.36 = 5,140.27/x
  3. Step 3: Cross multiply
    10,979.56x = 16,469.36 × 5,140.27
  4. Step 4: Simplify right side
    10,979.56x = 84,656,849.08
  5. Step 5: Solve for x
    x = 84,656,849.08/10,979.56
  6. Step 6: Final answer
    x = 7,710.41

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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.