Home / 12,864.93-19,297.85-4,431.38

Finding the Fourth Proportional to 12,864.93, 19,297.85 and 4,431.38

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Solution

The fourth proportional to 12,864.93, 19,297.85 and 4,431.38 is: 6,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.93 : 19,297.85 = 4,431.38 : x
  2. Step 2: Convert to fraction form
    12,864.93/19,297.85 = 4,431.38/x
  3. Step 3: Cross multiply
    12,864.93x = 19,297.85 × 4,431.38
  4. Step 4: Simplify right side
    12,864.93x = 85,515,987.89
  5. Step 5: Solve for x
    x = 85,515,987.89/12,864.93
  6. Step 6: Final answer
    x = 6,647.22

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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.