Home / 10,299.38-15,443.60-4,749.86

Finding the Fourth Proportional to 10,299.38, 15,443.60 and 4,749.86

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Solution

The fourth proportional to 10,299.38, 15,443.60 and 4,749.86 is: 7,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.38 : 15,443.60 = 4,749.86 : x
  2. Step 2: Convert to fraction form
    10,299.38/15,443.60 = 4,749.86/x
  3. Step 3: Cross multiply
    10,299.38x = 15,443.60 × 4,749.86
  4. Step 4: Simplify right side
    10,299.38x = 73,354,952.76
  5. Step 5: Solve for x
    x = 73,354,952.76/10,299.38
  6. Step 6: Final answer
    x = 7,122.27

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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.