Home / 11,420.38-17,137.05-4,499.74

Finding the Fourth Proportional to 11,420.38, 17,137.05 and 4,499.74

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Solution

The fourth proportional to 11,420.38, 17,137.05 and 4,499.74 is: 6,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.38 : 17,137.05 = 4,499.74 : x
  2. Step 2: Convert to fraction form
    11,420.38/17,137.05 = 4,499.74/x
  3. Step 3: Cross multiply
    11,420.38x = 17,137.05 × 4,499.74
  4. Step 4: Simplify right side
    11,420.38x = 77,112,269.37
  5. Step 5: Solve for x
    x = 77,112,269.37/11,420.38
  6. Step 6: Final answer
    x = 6,752.16

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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.