Home / 10,509.73-15,765.71-4,268.81

Finding the Fourth Proportional to 10,509.73, 15,765.71 and 4,268.81

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Solution

The fourth proportional to 10,509.73, 15,765.71 and 4,268.81 is: 6,403.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.73 : 15,765.71 = 4,268.81 : x
  2. Step 2: Convert to fraction form
    10,509.73/15,765.71 = 4,268.81/x
  3. Step 3: Cross multiply
    10,509.73x = 15,765.71 × 4,268.81
  4. Step 4: Simplify right side
    10,509.73x = 67,300,769.98
  5. Step 5: Solve for x
    x = 67,300,769.98/10,509.73
  6. Step 6: Final answer
    x = 6,403.66

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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.