Home / 13,765.80-20,650.07-4,403.47

Finding the Fourth Proportional to 13,765.80, 20,650.07 and 4,403.47

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Solution

The fourth proportional to 13,765.80, 20,650.07 and 4,403.47 is: 6,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.80 : 20,650.07 = 4,403.47 : x
  2. Step 2: Convert to fraction form
    13,765.80/20,650.07 = 4,403.47/x
  3. Step 3: Cross multiply
    13,765.80x = 20,650.07 × 4,403.47
  4. Step 4: Simplify right side
    13,765.80x = 90,931,941.73
  5. Step 5: Solve for x
    x = 90,931,941.73/13,765.80
  6. Step 6: Final answer
    x = 6,605.64

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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.