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Finding the Fourth Proportional to 8,811.06, 13,223.88 and 6,612.72

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Solution

The fourth proportional to 8,811.06, 13,223.88 and 6,612.72 is: 9,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.06 : 13,223.88 = 6,612.72 : x
  2. Step 2: Convert to fraction form
    8,811.06/13,223.88 = 6,612.72/x
  3. Step 3: Cross multiply
    8,811.06x = 13,223.88 × 6,612.72
  4. Step 4: Simplify right side
    8,811.06x = 87,445,815.75
  5. Step 5: Solve for x
    x = 87,445,815.75/8,811.06
  6. Step 6: Final answer
    x = 9,924.55

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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.