Home / 9,520.23-13,138.28-5,213.61

Finding the Fourth Proportional to 9,520.23, 13,138.28 and 5,213.61

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Solution

The fourth proportional to 9,520.23, 13,138.28 and 5,213.61 is: 7,194.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.23 : 13,138.28 = 5,213.61 : x
  2. Step 2: Convert to fraction form
    9,520.23/13,138.28 = 5,213.61/x
  3. Step 3: Cross multiply
    9,520.23x = 13,138.28 × 5,213.61
  4. Step 4: Simplify right side
    9,520.23x = 68,497,841.92
  5. Step 5: Solve for x
    x = 68,497,841.92/9,520.23
  6. Step 6: Final answer
    x = 7,194.98

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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.