Home / 18,920.64-26,110.68-11,851.22

Finding the Fourth Proportional to 18,920.64, 26,110.68 and 11,851.22

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Solution

The fourth proportional to 18,920.64, 26,110.68 and 11,851.22 is: 16,354.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.64 : 26,110.68 = 11,851.22 : x
  2. Step 2: Convert to fraction form
    18,920.64/26,110.68 = 11,851.22/x
  3. Step 3: Cross multiply
    18,920.64x = 26,110.68 × 11,851.22
  4. Step 4: Simplify right side
    18,920.64x = 309,443,413.03
  5. Step 5: Solve for x
    x = 309,443,413.03/18,920.64
  6. Step 6: Final answer
    x = 16,354.81

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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.