Home / 8,935.28-13,400.88-3,389.24

Finding the Fourth Proportional to 8,935.28, 13,400.88 and 3,389.24

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Solution

The fourth proportional to 8,935.28, 13,400.88 and 3,389.24 is: 5,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.28 : 13,400.88 = 3,389.24 : x
  2. Step 2: Convert to fraction form
    8,935.28/13,400.88 = 3,389.24/x
  3. Step 3: Cross multiply
    8,935.28x = 13,400.88 × 3,389.24
  4. Step 4: Simplify right side
    8,935.28x = 45,418,798.53
  5. Step 5: Solve for x
    x = 45,418,798.53/8,935.28
  6. Step 6: Final answer
    x = 5,083.09

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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.