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Finding the Fourth Proportional to 8,623.35, 12,924.90 and 8,531.01

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Solution

The fourth proportional to 8,623.35, 12,924.90 and 8,531.01 is: 12,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.35 : 12,924.90 = 8,531.01 : x
  2. Step 2: Convert to fraction form
    8,623.35/12,924.90 = 8,531.01/x
  3. Step 3: Cross multiply
    8,623.35x = 12,924.90 × 8,531.01
  4. Step 4: Simplify right side
    8,623.35x = 110,262,451.15
  5. Step 5: Solve for x
    x = 110,262,451.15/8,623.35
  6. Step 6: Final answer
    x = 12,786.50

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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.