Home / 13,399.73-18,491.67-7,431.95

Finding the Fourth Proportional to 13,399.73, 18,491.67 and 7,431.95

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Solution

The fourth proportional to 13,399.73, 18,491.67 and 7,431.95 is: 10,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.73 : 18,491.67 = 7,431.95 : x
  2. Step 2: Convert to fraction form
    13,399.73/18,491.67 = 7,431.95/x
  3. Step 3: Cross multiply
    13,399.73x = 18,491.67 × 7,431.95
  4. Step 4: Simplify right side
    13,399.73x = 137,429,074.40
  5. Step 5: Solve for x
    x = 137,429,074.40/13,399.73
  6. Step 6: Final answer
    x = 10,256.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.