Home / 15,890.72-23,850.35-8,860.42

Finding the Fourth Proportional to 15,890.72, 23,850.35 and 8,860.42

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Solution

The fourth proportional to 15,890.72, 23,850.35 and 8,860.42 is: 13,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.72 : 23,850.35 = 8,860.42 : x
  2. Step 2: Convert to fraction form
    15,890.72/23,850.35 = 8,860.42/x
  3. Step 3: Cross multiply
    15,890.72x = 23,850.35 × 8,860.42
  4. Step 4: Simplify right side
    15,890.72x = 211,324,136.88
  5. Step 5: Solve for x
    x = 211,324,136.88/15,890.72
  6. Step 6: Final answer
    x = 13,298.59

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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.