Home / 10,615.11-15,922.86-3,219.81

Finding the Fourth Proportional to 10,615.11, 15,922.86 and 3,219.81

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Solution

The fourth proportional to 10,615.11, 15,922.86 and 3,219.81 is: 4,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.11 : 15,922.86 = 3,219.81 : x
  2. Step 2: Convert to fraction form
    10,615.11/15,922.86 = 3,219.81/x
  3. Step 3: Cross multiply
    10,615.11x = 15,922.86 × 3,219.81
  4. Step 4: Simplify right side
    10,615.11x = 51,268,583.86
  5. Step 5: Solve for x
    x = 51,268,583.86/10,615.11
  6. Step 6: Final answer
    x = 4,829.77

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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.