Home / 8,487.67-12,727.38-3,807.49

Finding the Fourth Proportional to 8,487.67, 12,727.38 and 3,807.49

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Solution

The fourth proportional to 8,487.67, 12,727.38 and 3,807.49 is: 5,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.67 : 12,727.38 = 3,807.49 : x
  2. Step 2: Convert to fraction form
    8,487.67/12,727.38 = 3,807.49/x
  3. Step 3: Cross multiply
    8,487.67x = 12,727.38 × 3,807.49
  4. Step 4: Simplify right side
    8,487.67x = 48,459,372.08
  5. Step 5: Solve for x
    x = 48,459,372.08/8,487.67
  6. Step 6: Final answer
    x = 5,709.38

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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.