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Finding the Fourth Proportional to 8,636.70, 12,952.62 and 2,395.20

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Solution

The fourth proportional to 8,636.70, 12,952.62 and 2,395.20 is: 3,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.70 : 12,952.62 = 2,395.20 : x
  2. Step 2: Convert to fraction form
    8,636.70/12,952.62 = 2,395.20/x
  3. Step 3: Cross multiply
    8,636.70x = 12,952.62 × 2,395.20
  4. Step 4: Simplify right side
    8,636.70x = 31,024,115.42
  5. Step 5: Solve for x
    x = 31,024,115.42/8,636.70
  6. Step 6: Final answer
    x = 3,592.13

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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.