Home / 13,701.24-20,552.76-3,840.90

Finding the Fourth Proportional to 13,701.24, 20,552.76 and 3,840.90

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Solution

The fourth proportional to 13,701.24, 20,552.76 and 3,840.90 is: 5,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.24 : 20,552.76 = 3,840.90 : x
  2. Step 2: Convert to fraction form
    13,701.24/20,552.76 = 3,840.90/x
  3. Step 3: Cross multiply
    13,701.24x = 20,552.76 × 3,840.90
  4. Step 4: Simplify right side
    13,701.24x = 78,941,095.88
  5. Step 5: Solve for x
    x = 78,941,095.88/13,701.24
  6. Step 6: Final answer
    x = 5,761.60

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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.