Home / 13,163.90-18,166.14-7,195.18

Finding the Fourth Proportional to 13,163.90, 18,166.14 and 7,195.18

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Solution

The fourth proportional to 13,163.90, 18,166.14 and 7,195.18 is: 9,929.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.90 : 18,166.14 = 7,195.18 : x
  2. Step 2: Convert to fraction form
    13,163.90/18,166.14 = 7,195.18/x
  3. Step 3: Cross multiply
    13,163.90x = 18,166.14 × 7,195.18
  4. Step 4: Simplify right side
    13,163.90x = 130,708,647.21
  5. Step 5: Solve for x
    x = 130,708,647.21/13,163.90
  6. Step 6: Final answer
    x = 9,929.33

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Half scale
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Double scale
Find fourth proportional to 13,164.90, 18,167.52 and 7,196.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.