Home / 10,831.92-16,255.20-5,287.92

Finding the Fourth Proportional to 10,831.92, 16,255.20 and 5,287.92

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Solution

The fourth proportional to 10,831.92, 16,255.20 and 5,287.92 is: 7,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.92 : 16,255.20 = 5,287.92 : x
  2. Step 2: Convert to fraction form
    10,831.92/16,255.20 = 5,287.92/x
  3. Step 3: Cross multiply
    10,831.92x = 16,255.20 × 5,287.92
  4. Step 4: Simplify right side
    10,831.92x = 85,956,197.18
  5. Step 5: Solve for x
    x = 85,956,197.18/10,831.92
  6. Step 6: Final answer
    x = 7,935.45

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1.5x scale

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.