Home / 8,918.62-13,319.38-7,166.29

Finding the Fourth Proportional to 8,918.62, 13,319.38 and 7,166.29

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Solution

The fourth proportional to 8,918.62, 13,319.38 and 7,166.29 is: 10,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.62 : 13,319.38 = 7,166.29 : x
  2. Step 2: Convert to fraction form
    8,918.62/13,319.38 = 7,166.29/x
  3. Step 3: Cross multiply
    8,918.62x = 13,319.38 × 7,166.29
  4. Step 4: Simplify right side
    8,918.62x = 95,450,539.70
  5. Step 5: Solve for x
    x = 95,450,539.70/8,918.62
  6. Step 6: Final answer
    x = 10,702.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.