Home / 8,916.67-13,370.80-5,220.02

Finding the Fourth Proportional to 8,916.67, 13,370.80 and 5,220.02

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Solution

The fourth proportional to 8,916.67, 13,370.80 and 5,220.02 is: 7,827.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.67 : 13,370.80 = 5,220.02 : x
  2. Step 2: Convert to fraction form
    8,916.67/13,370.80 = 5,220.02/x
  3. Step 3: Cross multiply
    8,916.67x = 13,370.80 × 5,220.02
  4. Step 4: Simplify right side
    8,916.67x = 69,795,843.42
  5. Step 5: Solve for x
    x = 69,795,843.42/8,916.67
  6. Step 6: Final answer
    x = 7,827.57

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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.