Home / 10,639.18-15,958.53-2,847.99

Finding the Fourth Proportional to 10,639.18, 15,958.53 and 2,847.99

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Solution

The fourth proportional to 10,639.18, 15,958.53 and 2,847.99 is: 4,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.18 : 15,958.53 = 2,847.99 : x
  2. Step 2: Convert to fraction form
    10,639.18/15,958.53 = 2,847.99/x
  3. Step 3: Cross multiply
    10,639.18x = 15,958.53 × 2,847.99
  4. Step 4: Simplify right side
    10,639.18x = 45,449,733.85
  5. Step 5: Solve for x
    x = 45,449,733.85/10,639.18
  6. Step 6: Final answer
    x = 4,271.92

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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.