Home / 10,300.38-15,445.09-4,750.86

Finding the Fourth Proportional to 10,300.38, 15,445.09 and 4,750.86

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Solution

The fourth proportional to 10,300.38, 15,445.09 and 4,750.86 is: 7,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,300.38 : 15,445.09 = 4,750.86 : x
  2. Step 2: Convert to fraction form
    10,300.38/15,445.09 = 4,750.86/x
  3. Step 3: Cross multiply
    10,300.38x = 15,445.09 × 4,750.86
  4. Step 4: Simplify right side
    10,300.38x = 73,377,460.28
  5. Step 5: Solve for x
    x = 73,377,460.28/10,300.38
  6. Step 6: Final answer
    x = 7,123.76

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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.