Home / 10,831.91-16,243.75-4,254.50

Finding the Fourth Proportional to 10,831.91, 16,243.75 and 4,254.50

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Solution

The fourth proportional to 10,831.91, 16,243.75 and 4,254.50 is: 6,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.91 : 16,243.75 = 4,254.50 : x
  2. Step 2: Convert to fraction form
    10,831.91/16,243.75 = 4,254.50/x
  3. Step 3: Cross multiply
    10,831.91x = 16,243.75 × 4,254.50
  4. Step 4: Simplify right side
    10,831.91x = 69,109,034.38
  5. Step 5: Solve for x
    x = 69,109,034.38/10,831.91
  6. Step 6: Final answer
    x = 6,380.13

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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.