Home / 8,831.27-12,181.74-5,243.79

Finding the Fourth Proportional to 8,831.27, 12,181.74 and 5,243.79

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Solution

The fourth proportional to 8,831.27, 12,181.74 and 5,243.79 is: 7,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.27 : 12,181.74 = 5,243.79 : x
  2. Step 2: Convert to fraction form
    8,831.27/12,181.74 = 5,243.79/x
  3. Step 3: Cross multiply
    8,831.27x = 12,181.74 × 5,243.79
  4. Step 4: Simplify right side
    8,831.27x = 63,878,486.39
  5. Step 5: Solve for x
    x = 63,878,486.39/8,831.27
  6. Step 6: Final answer
    x = 7,233.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.