Home / 10,381.18-15,563.12-4,831.60

Finding the Fourth Proportional to 10,381.18, 15,563.12 and 4,831.60

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Solution

The fourth proportional to 10,381.18, 15,563.12 and 4,831.60 is: 7,243.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.18 : 15,563.12 = 4,831.60 : x
  2. Step 2: Convert to fraction form
    10,381.18/15,563.12 = 4,831.60/x
  3. Step 3: Cross multiply
    10,381.18x = 15,563.12 × 4,831.60
  4. Step 4: Simplify right side
    10,381.18x = 75,194,770.59
  5. Step 5: Solve for x
    x = 75,194,770.59/10,381.18
  6. Step 6: Final answer
    x = 7,243.37

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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.