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Finding the Fourth Proportional to 8,555.13, 12,853.44 and 8,083.10

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Solution

The fourth proportional to 8,555.13, 12,853.44 and 8,083.10 is: 12,144.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.13 : 12,853.44 = 8,083.10 : x
  2. Step 2: Convert to fraction form
    8,555.13/12,853.44 = 8,083.10/x
  3. Step 3: Cross multiply
    8,555.13x = 12,853.44 × 8,083.10
  4. Step 4: Simplify right side
    8,555.13x = 103,895,576.60
  5. Step 5: Solve for x
    x = 103,895,576.60/8,555.13
  6. Step 6: Final answer
    x = 12,144.24

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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.