Home / 13,761.80-20,628.30-4,993.16

Finding the Fourth Proportional to 13,761.80, 20,628.30 and 4,993.16

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Solution

The fourth proportional to 13,761.80, 20,628.30 and 4,993.16 is: 7,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.80 : 20,628.30 = 4,993.16 : x
  2. Step 2: Convert to fraction form
    13,761.80/20,628.30 = 4,993.16/x
  3. Step 3: Cross multiply
    13,761.80x = 20,628.30 × 4,993.16
  4. Step 4: Simplify right side
    13,761.80x = 103,000,402.43
  5. Step 5: Solve for x
    x = 103,000,402.43/13,761.80
  6. Step 6: Final answer
    x = 7,484.52

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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.