Home / 9,539.18-14,311.53-3,989.66

Finding the Fourth Proportional to 9,539.18, 14,311.53 and 3,989.66

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Solution

The fourth proportional to 9,539.18, 14,311.53 and 3,989.66 is: 5,985.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,539.18 : 14,311.53 = 3,989.66 : x
  2. Step 2: Convert to fraction form
    9,539.18/14,311.53 = 3,989.66/x
  3. Step 3: Cross multiply
    9,539.18x = 14,311.53 × 3,989.66
  4. Step 4: Simplify right side
    9,539.18x = 57,098,138.78
  5. Step 5: Solve for x
    x = 57,098,138.78/9,539.18
  6. Step 6: Final answer
    x = 5,985.64

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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.