Home / 15,871.76-23,791.44-11,478.32

Finding the Fourth Proportional to 15,871.76, 23,791.44 and 11,478.32

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Solution

The fourth proportional to 15,871.76, 23,791.44 and 11,478.32 is: 17,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.76 : 23,791.44 = 11,478.32 : x
  2. Step 2: Convert to fraction form
    15,871.76/23,791.44 = 11,478.32/x
  3. Step 3: Cross multiply
    15,871.76x = 23,791.44 × 11,478.32
  4. Step 4: Simplify right side
    15,871.76x = 273,085,761.58
  5. Step 5: Solve for x
    x = 273,085,761.58/15,871.76
  6. Step 6: Final answer
    x = 17,205.76

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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.