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Finding the Fourth Proportional to 8,435.62, 12,652.13 and 2,887.69

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Solution

The fourth proportional to 8,435.62, 12,652.13 and 2,887.69 is: 4,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.62 : 12,652.13 = 2,887.69 : x
  2. Step 2: Convert to fraction form
    8,435.62/12,652.13 = 2,887.69/x
  3. Step 3: Cross multiply
    8,435.62x = 12,652.13 × 2,887.69
  4. Step 4: Simplify right side
    8,435.62x = 36,535,429.28
  5. Step 5: Solve for x
    x = 36,535,429.28/8,435.62
  6. Step 6: Final answer
    x = 4,331.09

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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.