Home / 13,840.86-20,761.65-4,481.22

Finding the Fourth Proportional to 13,840.86, 20,761.65 and 4,481.22

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Solution

The fourth proportional to 13,840.86, 20,761.65 and 4,481.22 is: 6,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.86 : 20,761.65 = 4,481.22 : x
  2. Step 2: Convert to fraction form
    13,840.86/20,761.65 = 4,481.22/x
  3. Step 3: Cross multiply
    13,840.86x = 20,761.65 × 4,481.22
  4. Step 4: Simplify right side
    13,840.86x = 93,037,521.21
  5. Step 5: Solve for x
    x = 93,037,521.21/13,840.86
  6. Step 6: Final answer
    x = 6,721.95

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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.