Home / 11,244.70-15,520.78-6,530.50

Finding the Fourth Proportional to 11,244.70, 15,520.78 and 6,530.50

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Solution

The fourth proportional to 11,244.70, 15,520.78 and 6,530.50 is: 9,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,244.70 : 15,520.78 = 6,530.50 : x
  2. Step 2: Convert to fraction form
    11,244.70/15,520.78 = 6,530.50/x
  3. Step 3: Cross multiply
    11,244.70x = 15,520.78 × 6,530.50
  4. Step 4: Simplify right side
    11,244.70x = 101,358,453.79
  5. Step 5: Solve for x
    x = 101,358,453.79/11,244.70
  6. Step 6: Final answer
    x = 9,013.89

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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.