Home / 9,135.87-13,697.43-4,977.82

Finding the Fourth Proportional to 9,135.87, 13,697.43 and 4,977.82

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Solution

The fourth proportional to 9,135.87, 13,697.43 and 4,977.82 is: 7,463.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.87 : 13,697.43 = 4,977.82 : x
  2. Step 2: Convert to fraction form
    9,135.87/13,697.43 = 4,977.82/x
  3. Step 3: Cross multiply
    9,135.87x = 13,697.43 × 4,977.82
  4. Step 4: Simplify right side
    9,135.87x = 68,183,341.00
  5. Step 5: Solve for x
    x = 68,183,341.00/9,135.87
  6. Step 6: Final answer
    x = 7,463.26

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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.