Home / 10,756.45-16,129.81-3,831.13

Finding the Fourth Proportional to 10,756.45, 16,129.81 and 3,831.13

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Solution

The fourth proportional to 10,756.45, 16,129.81 and 3,831.13 is: 5,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.45 : 16,129.81 = 3,831.13 : x
  2. Step 2: Convert to fraction form
    10,756.45/16,129.81 = 3,831.13/x
  3. Step 3: Cross multiply
    10,756.45x = 16,129.81 × 3,831.13
  4. Step 4: Simplify right side
    10,756.45x = 61,795,398.99
  5. Step 5: Solve for x
    x = 61,795,398.99/10,756.45
  6. Step 6: Final answer
    x = 5,744.96

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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.