Home / 9,995.87-14,977.40-3,418.47

Finding the Fourth Proportional to 9,995.87, 14,977.40 and 3,418.47

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Solution

The fourth proportional to 9,995.87, 14,977.40 and 3,418.47 is: 5,122.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.87 : 14,977.40 = 3,418.47 : x
  2. Step 2: Convert to fraction form
    9,995.87/14,977.40 = 3,418.47/x
  3. Step 3: Cross multiply
    9,995.87x = 14,977.40 × 3,418.47
  4. Step 4: Simplify right side
    9,995.87x = 51,199,797.67
  5. Step 5: Solve for x
    x = 51,199,797.67/9,995.87
  6. Step 6: Final answer
    x = 5,122.09

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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.