Home / 11,411.97-15,749.69-6,697.77

Finding the Fourth Proportional to 11,411.97, 15,749.69 and 6,697.77

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Solution

The fourth proportional to 11,411.97, 15,749.69 and 6,697.77 is: 9,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.97 : 15,749.69 = 6,697.77 : x
  2. Step 2: Convert to fraction form
    11,411.97/15,749.69 = 6,697.77/x
  3. Step 3: Cross multiply
    11,411.97x = 15,749.69 × 6,697.77
  4. Step 4: Simplify right side
    11,411.97x = 105,487,767.70
  5. Step 5: Solve for x
    x = 105,487,767.70/11,411.97
  6. Step 6: Final answer
    x = 9,243.61

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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.