Home / 11,007.15-15,189.70-5,971.38

Finding the Fourth Proportional to 11,007.15, 15,189.70 and 5,971.38

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Solution

The fourth proportional to 11,007.15, 15,189.70 and 5,971.38 is: 8,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.15 : 15,189.70 = 5,971.38 : x
  2. Step 2: Convert to fraction form
    11,007.15/15,189.70 = 5,971.38/x
  3. Step 3: Cross multiply
    11,007.15x = 15,189.70 × 5,971.38
  4. Step 4: Simplify right side
    11,007.15x = 90,703,470.79
  5. Step 5: Solve for x
    x = 90,703,470.79/11,007.15
  6. Step 6: Final answer
    x = 8,240.41

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1.5x scale

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.