Home / 18,851.13-26,014.64-11,781.59

Finding the Fourth Proportional to 18,851.13, 26,014.64 and 11,781.59

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Solution

The fourth proportional to 18,851.13, 26,014.64 and 11,781.59 is: 16,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.13 : 26,014.64 = 11,781.59 : x
  2. Step 2: Convert to fraction form
    18,851.13/26,014.64 = 11,781.59/x
  3. Step 3: Cross multiply
    18,851.13x = 26,014.64 × 11,781.59
  4. Step 4: Simplify right side
    18,851.13x = 306,493,633.50
  5. Step 5: Solve for x
    x = 306,493,633.50/18,851.13
  6. Step 6: Final answer
    x = 16,258.63

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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.