Home / 8,424.89-12,637.34-2,878.29

Finding the Fourth Proportional to 8,424.89, 12,637.34 and 2,878.29

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Solution

The fourth proportional to 8,424.89, 12,637.34 and 2,878.29 is: 4,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.89 : 12,637.34 = 2,878.29 : x
  2. Step 2: Convert to fraction form
    8,424.89/12,637.34 = 2,878.29/x
  3. Step 3: Cross multiply
    8,424.89x = 12,637.34 × 2,878.29
  4. Step 4: Simplify right side
    8,424.89x = 36,373,936.54
  5. Step 5: Solve for x
    x = 36,373,936.54/8,424.89
  6. Step 6: Final answer
    x = 4,317.44

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Similar ratio
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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.