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Finding the Fourth Proportional to 8,831.15, 13,249.22 and 2,988.21

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Solution

The fourth proportional to 8,831.15, 13,249.22 and 2,988.21 is: 4,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.15 : 13,249.22 = 2,988.21 : x
  2. Step 2: Convert to fraction form
    8,831.15/13,249.22 = 2,988.21/x
  3. Step 3: Cross multiply
    8,831.15x = 13,249.22 × 2,988.21
  4. Step 4: Simplify right side
    8,831.15x = 39,591,436.76
  5. Step 5: Solve for x
    x = 39,591,436.76/8,831.15
  6. Step 6: Final answer
    x = 4,483.16

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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.