Home / 10,311.50-15,469.36-4,388.38

Finding the Fourth Proportional to 10,311.50, 15,469.36 and 4,388.38

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Solution

The fourth proportional to 10,311.50, 15,469.36 and 4,388.38 is: 6,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.50 : 15,469.36 = 4,388.38 : x
  2. Step 2: Convert to fraction form
    10,311.50/15,469.36 = 4,388.38/x
  3. Step 3: Cross multiply
    10,311.50x = 15,469.36 × 4,388.38
  4. Step 4: Simplify right side
    10,311.50x = 67,885,430.04
  5. Step 5: Solve for x
    x = 67,885,430.04/10,311.50
  6. Step 6: Final answer
    x = 6,583.47

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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.