Home / 8,180.02-11,290.62-5,197.60

Finding the Fourth Proportional to 8,180.02, 11,290.62 and 5,197.60

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Solution

The fourth proportional to 8,180.02, 11,290.62 and 5,197.60 is: 7,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.02 : 11,290.62 = 5,197.60 : x
  2. Step 2: Convert to fraction form
    8,180.02/11,290.62 = 5,197.60/x
  3. Step 3: Cross multiply
    8,180.02x = 11,290.62 × 5,197.60
  4. Step 4: Simplify right side
    8,180.02x = 58,684,126.51
  5. Step 5: Solve for x
    x = 58,684,126.51/8,180.02
  6. Step 6: Final answer
    x = 7,174.08

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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.