Home / 13,761.32-20,627.86-5,437.96

Finding the Fourth Proportional to 13,761.32, 20,627.86 and 5,437.96

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Solution

The fourth proportional to 13,761.32, 20,627.86 and 5,437.96 is: 8,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.32 : 20,627.86 = 5,437.96 : x
  2. Step 2: Convert to fraction form
    13,761.32/20,627.86 = 5,437.96/x
  3. Step 3: Cross multiply
    13,761.32x = 20,627.86 × 5,437.96
  4. Step 4: Simplify right side
    13,761.32x = 112,173,477.57
  5. Step 5: Solve for x
    x = 112,173,477.57/13,761.32
  6. Step 6: Final answer
    x = 8,151.36

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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.