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Finding the Fourth Proportional to 8,560.44, 12,840.12 and 3,014.28

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Solution

The fourth proportional to 8,560.44, 12,840.12 and 3,014.28 is: 4,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.44 : 12,840.12 = 3,014.28 : x
  2. Step 2: Convert to fraction form
    8,560.44/12,840.12 = 3,014.28/x
  3. Step 3: Cross multiply
    8,560.44x = 12,840.12 × 3,014.28
  4. Step 4: Simplify right side
    8,560.44x = 38,703,716.91
  5. Step 5: Solve for x
    x = 38,703,716.91/8,560.44
  6. Step 6: Final answer
    x = 4,521.23

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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.