Home / 10,916.67-16,386.46-9,675.21

Finding the Fourth Proportional to 10,916.67, 16,386.46 and 9,675.21

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Solution

The fourth proportional to 10,916.67, 16,386.46 and 9,675.21 is: 14,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.67 : 16,386.46 = 9,675.21 : x
  2. Step 2: Convert to fraction form
    10,916.67/16,386.46 = 9,675.21/x
  3. Step 3: Cross multiply
    10,916.67x = 16,386.46 × 9,675.21
  4. Step 4: Simplify right side
    10,916.67x = 158,542,441.66
  5. Step 5: Solve for x
    x = 158,542,441.66/10,916.67
  6. Step 6: Final answer
    x = 14,522.97

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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.