Home / 10,831.76-16,247.64-3,810.12

Finding the Fourth Proportional to 10,831.76, 16,247.64 and 3,810.12

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Solution

The fourth proportional to 10,831.76, 16,247.64 and 3,810.12 is: 5,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.76 : 16,247.64 = 3,810.12 : x
  2. Step 2: Convert to fraction form
    10,831.76/16,247.64 = 3,810.12/x
  3. Step 3: Cross multiply
    10,831.76x = 16,247.64 × 3,810.12
  4. Step 4: Simplify right side
    10,831.76x = 61,905,458.12
  5. Step 5: Solve for x
    x = 61,905,458.12/10,831.76
  6. Step 6: Final answer
    x = 5,715.18

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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.