Home / 11,432.03-15,776.12-6,396.21

Finding the Fourth Proportional to 11,432.03, 15,776.12 and 6,396.21

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Solution

The fourth proportional to 11,432.03, 15,776.12 and 6,396.21 is: 8,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.03 : 15,776.12 = 6,396.21 : x
  2. Step 2: Convert to fraction form
    11,432.03/15,776.12 = 6,396.21/x
  3. Step 3: Cross multiply
    11,432.03x = 15,776.12 × 6,396.21
  4. Step 4: Simplify right side
    11,432.03x = 100,907,344.52
  5. Step 5: Solve for x
    x = 100,907,344.52/11,432.03
  6. Step 6: Final answer
    x = 8,826.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.