Home / 13,316.78-19,977.09-4,083.50

Finding the Fourth Proportional to 13,316.78, 19,977.09 and 4,083.50

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Solution

The fourth proportional to 13,316.78, 19,977.09 and 4,083.50 is: 6,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.78 : 19,977.09 = 4,083.50 : x
  2. Step 2: Convert to fraction form
    13,316.78/19,977.09 = 4,083.50/x
  3. Step 3: Cross multiply
    13,316.78x = 19,977.09 × 4,083.50
  4. Step 4: Simplify right side
    13,316.78x = 81,576,447.02
  5. Step 5: Solve for x
    x = 81,576,447.02/13,316.78
  6. Step 6: Final answer
    x = 6,125.84

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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.