Home / 10,231.15-15,330.32-9,247

Finding the Fourth Proportional to 10,231.15, 15,330.32 and 9,247

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Solution

The fourth proportional to 10,231.15, 15,330.32 and 9,247 is: 13,855.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.15 : 15,330.32 = 9,247 : x
  2. Step 2: Convert to fraction form
    10,231.15/15,330.32 = 9,247/x
  3. Step 3: Cross multiply
    10,231.15x = 15,330.32 × 9,247
  4. Step 4: Simplify right side
    10,231.15x = 141,759,469.04
  5. Step 5: Solve for x
    x = 141,759,469.04/10,231.15
  6. Step 6: Final answer
    x = 13,855.67

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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.