Home / 14,309.40-21,468.57-6,418.53

Finding the Fourth Proportional to 14,309.40, 21,468.57 and 6,418.53

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Solution

The fourth proportional to 14,309.40, 21,468.57 and 6,418.53 is: 9,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.40 : 21,468.57 = 6,418.53 : x
  2. Step 2: Convert to fraction form
    14,309.40/21,468.57 = 6,418.53/x
  3. Step 3: Cross multiply
    14,309.40x = 21,468.57 × 6,418.53
  4. Step 4: Simplify right side
    14,309.40x = 137,796,660.60
  5. Step 5: Solve for x
    x = 137,796,660.60/14,309.40
  6. Step 6: Final answer
    x = 9,629.80

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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.