Home / 11,359.51-17,039.07-5,115.10

Finding the Fourth Proportional to 11,359.51, 17,039.07 and 5,115.10

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Solution

The fourth proportional to 11,359.51, 17,039.07 and 5,115.10 is: 7,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.51 : 17,039.07 = 5,115.10 : x
  2. Step 2: Convert to fraction form
    11,359.51/17,039.07 = 5,115.10/x
  3. Step 3: Cross multiply
    11,359.51x = 17,039.07 × 5,115.10
  4. Step 4: Simplify right side
    11,359.51x = 87,156,546.96
  5. Step 5: Solve for x
    x = 87,156,546.96/11,359.51
  6. Step 6: Final answer
    x = 7,672.56

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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.