Home / 13,299.09-19,942.51-3,935.76

Finding the Fourth Proportional to 13,299.09, 19,942.51 and 3,935.76

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Solution

The fourth proportional to 13,299.09, 19,942.51 and 3,935.76 is: 5,901.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.09 : 19,942.51 = 3,935.76 : x
  2. Step 2: Convert to fraction form
    13,299.09/19,942.51 = 3,935.76/x
  3. Step 3: Cross multiply
    13,299.09x = 19,942.51 × 3,935.76
  4. Step 4: Simplify right side
    13,299.09x = 78,488,973.17
  5. Step 5: Solve for x
    x = 78,488,973.17/13,299.09
  6. Step 6: Final answer
    x = 5,901.83

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1.5x scale

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.