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Finding the Fourth Proportional to 8,296.60, 12,444.90 and 8,210.20

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Solution

The fourth proportional to 8,296.60, 12,444.90 and 8,210.20 is: 12,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296.60 : 12,444.90 = 8,210.20 : x
  2. Step 2: Convert to fraction form
    8,296.60/12,444.90 = 8,210.20/x
  3. Step 3: Cross multiply
    8,296.60x = 12,444.90 × 8,210.20
  4. Step 4: Simplify right side
    8,296.60x = 102,175,117.98
  5. Step 5: Solve for x
    x = 102,175,117.98/8,296.60
  6. Step 6: Final answer
    x = 12,315.30

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Similar ratio
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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.