Home / 10,534.35-15,803.81-3,139.41

Finding the Fourth Proportional to 10,534.35, 15,803.81 and 3,139.41

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Solution

The fourth proportional to 10,534.35, 15,803.81 and 3,139.41 is: 4,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,534.35 : 15,803.81 = 3,139.41 : x
  2. Step 2: Convert to fraction form
    10,534.35/15,803.81 = 3,139.41/x
  3. Step 3: Cross multiply
    10,534.35x = 15,803.81 × 3,139.41
  4. Step 4: Simplify right side
    10,534.35x = 49,614,605.60
  5. Step 5: Solve for x
    x = 49,614,605.60/10,534.35
  6. Step 6: Final answer
    x = 4,709.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.