Home / 11,319.30-16,966.53-5,072.76

Finding the Fourth Proportional to 11,319.30, 16,966.53 and 5,072.76

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Solution

The fourth proportional to 11,319.30, 16,966.53 and 5,072.76 is: 7,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.30 : 16,966.53 = 5,072.76 : x
  2. Step 2: Convert to fraction form
    11,319.30/16,966.53 = 5,072.76/x
  3. Step 3: Cross multiply
    11,319.30x = 16,966.53 × 5,072.76
  4. Step 4: Simplify right side
    11,319.30x = 86,067,134.72
  5. Step 5: Solve for x
    x = 86,067,134.72/11,319.30
  6. Step 6: Final answer
    x = 7,603.57

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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.