Home / 18,771.02-25,892.75-12,397.62

Finding the Fourth Proportional to 18,771.02, 25,892.75 and 12,397.62

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Solution

The fourth proportional to 18,771.02, 25,892.75 and 12,397.62 is: 17,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.02 : 25,892.75 = 12,397.62 : x
  2. Step 2: Convert to fraction form
    18,771.02/25,892.75 = 12,397.62/x
  3. Step 3: Cross multiply
    18,771.02x = 25,892.75 × 12,397.62
  4. Step 4: Simplify right side
    18,771.02x = 321,008,413.27
  5. Step 5: Solve for x
    x = 321,008,413.27/18,771.02
  6. Step 6: Final answer
    x = 17,101.27

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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.