Home / 13,826.02-20,739.12-3,437.77

Finding the Fourth Proportional to 13,826.02, 20,739.12 and 3,437.77

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Solution

The fourth proportional to 13,826.02, 20,739.12 and 3,437.77 is: 5,156.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.02 : 20,739.12 = 3,437.77 : x
  2. Step 2: Convert to fraction form
    13,826.02/20,739.12 = 3,437.77/x
  3. Step 3: Cross multiply
    13,826.02x = 20,739.12 × 3,437.77
  4. Step 4: Simplify right side
    13,826.02x = 71,296,385.15
  5. Step 5: Solve for x
    x = 71,296,385.15/13,826.02
  6. Step 6: Final answer
    x = 5,156.68

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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.