Home / 11,364.07-15,687.27-7,640.23

Finding the Fourth Proportional to 11,364.07, 15,687.27 and 7,640.23

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Solution

The fourth proportional to 11,364.07, 15,687.27 and 7,640.23 is: 10,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,364.07 : 15,687.27 = 7,640.23 : x
  2. Step 2: Convert to fraction form
    11,364.07/15,687.27 = 7,640.23/x
  3. Step 3: Cross multiply
    11,364.07x = 15,687.27 × 7,640.23
  4. Step 4: Simplify right side
    11,364.07x = 119,854,350.87
  5. Step 5: Solve for x
    x = 119,854,350.87/11,364.07
  6. Step 6: Final answer
    x = 10,546.78

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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.