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Finding the Fourth Proportional to 8,831.84, 13,250.99 and 8,310.20

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Solution

The fourth proportional to 8,831.84, 13,250.99 and 8,310.20 is: 12,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.84 : 13,250.99 = 8,310.20 : x
  2. Step 2: Convert to fraction form
    8,831.84/13,250.99 = 8,310.20/x
  3. Step 3: Cross multiply
    8,831.84x = 13,250.99 × 8,310.20
  4. Step 4: Simplify right side
    8,831.84x = 110,118,377.10
  5. Step 5: Solve for x
    x = 110,118,377.10/8,831.84
  6. Step 6: Final answer
    x = 12,468.34

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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.