Home / 10,331.72-15,497.18-3,311.56

Finding the Fourth Proportional to 10,331.72, 15,497.18 and 3,311.56

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Solution

The fourth proportional to 10,331.72, 15,497.18 and 3,311.56 is: 4,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.72 : 15,497.18 = 3,311.56 : x
  2. Step 2: Convert to fraction form
    10,331.72/15,497.18 = 3,311.56/x
  3. Step 3: Cross multiply
    10,331.72x = 15,497.18 × 3,311.56
  4. Step 4: Simplify right side
    10,331.72x = 51,319,841.40
  5. Step 5: Solve for x
    x = 51,319,841.40/10,331.72
  6. Step 6: Final answer
    x = 4,967.21

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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.