Home / 11,350.47-16,979.91-10,168.80

Finding the Fourth Proportional to 11,350.47, 16,979.91 and 10,168.80

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Solution

The fourth proportional to 11,350.47, 16,979.91 and 10,168.80 is: 15,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,350.47 : 16,979.91 = 10,168.80 : x
  2. Step 2: Convert to fraction form
    11,350.47/16,979.91 = 10,168.80/x
  3. Step 3: Cross multiply
    11,350.47x = 16,979.91 × 10,168.80
  4. Step 4: Simplify right side
    11,350.47x = 172,665,308.81
  5. Step 5: Solve for x
    x = 172,665,308.81/11,350.47
  6. Step 6: Final answer
    x = 15,212.17

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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.