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Finding the Fourth Proportional to 21,797.06, 32,697.53 and 8,469.74

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Solution

The fourth proportional to 21,797.06, 32,697.53 and 8,469.74 is: 12,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.06 : 32,697.53 = 8,469.74 : x
  2. Step 2: Convert to fraction form
    21,797.06/32,697.53 = 8,469.74/x
  3. Step 3: Cross multiply
    21,797.06x = 32,697.53 × 8,469.74
  4. Step 4: Simplify right side
    21,797.06x = 276,939,371.91
  5. Step 5: Solve for x
    x = 276,939,371.91/21,797.06
  6. Step 6: Final answer
    x = 12,705.36

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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.