Home / 11,215.67-16,890.59-10,219.23

Finding the Fourth Proportional to 11,215.67, 16,890.59 and 10,219.23

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Solution

The fourth proportional to 11,215.67, 16,890.59 and 10,219.23 is: 15,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.67 : 16,890.59 = 10,219.23 : x
  2. Step 2: Convert to fraction form
    11,215.67/16,890.59 = 10,219.23/x
  3. Step 3: Cross multiply
    11,215.67x = 16,890.59 × 10,219.23
  4. Step 4: Simplify right side
    11,215.67x = 172,608,849.59
  5. Step 5: Solve for x
    x = 172,608,849.59/11,215.67
  6. Step 6: Final answer
    x = 15,389.98

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.