Home / 12,865.42-19,297.99-4,101.09

Finding the Fourth Proportional to 12,865.42, 19,297.99 and 4,101.09

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Solution

The fourth proportional to 12,865.42, 19,297.99 and 4,101.09 is: 6,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.42 : 19,297.99 = 4,101.09 : x
  2. Step 2: Convert to fraction form
    12,865.42/19,297.99 = 4,101.09/x
  3. Step 3: Cross multiply
    12,865.42x = 19,297.99 × 4,101.09
  4. Step 4: Simplify right side
    12,865.42x = 79,142,793.81
  5. Step 5: Solve for x
    x = 79,142,793.81/12,865.42
  6. Step 6: Final answer
    x = 6,151.59

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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.