Home / 12,428.36-18,629.58-5,037.92

Finding the Fourth Proportional to 12,428.36, 18,629.58 and 5,037.92

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Solution

The fourth proportional to 12,428.36, 18,629.58 and 5,037.92 is: 7,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.36 : 18,629.58 = 5,037.92 : x
  2. Step 2: Convert to fraction form
    12,428.36/18,629.58 = 5,037.92/x
  3. Step 3: Cross multiply
    12,428.36x = 18,629.58 × 5,037.92
  4. Step 4: Simplify right side
    12,428.36x = 93,854,333.67
  5. Step 5: Solve for x
    x = 93,854,333.67/12,428.36
  6. Step 6: Final answer
    x = 7,551.63

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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.