Home / 11,007.86-15,180.48-7,234.29

Finding the Fourth Proportional to 11,007.86, 15,180.48 and 7,234.29

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Solution

The fourth proportional to 11,007.86, 15,180.48 and 7,234.29 is: 9,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.86 : 15,180.48 = 7,234.29 : x
  2. Step 2: Convert to fraction form
    11,007.86/15,180.48 = 7,234.29/x
  3. Step 3: Cross multiply
    11,007.86x = 15,180.48 × 7,234.29
  4. Step 4: Simplify right side
    11,007.86x = 109,819,994.66
  5. Step 5: Solve for x
    x = 109,819,994.66/11,007.86
  6. Step 6: Final answer
    x = 9,976.51

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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.