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Finding the Fourth Proportional to 8,560.64, 12,837.12 and 3,012.35

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Solution

The fourth proportional to 8,560.64, 12,837.12 and 3,012.35 is: 4,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.64 : 12,837.12 = 3,012.35 : x
  2. Step 2: Convert to fraction form
    8,560.64/12,837.12 = 3,012.35/x
  3. Step 3: Cross multiply
    8,560.64x = 12,837.12 × 3,012.35
  4. Step 4: Simplify right side
    8,560.64x = 38,669,834.25
  5. Step 5: Solve for x
    x = 38,669,834.25/8,560.64
  6. Step 6: Final answer
    x = 4,517.17

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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.