Home / 18,851.56-26,015.28-11,782.12

Finding the Fourth Proportional to 18,851.56, 26,015.28 and 11,782.12

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Solution

The fourth proportional to 18,851.56, 26,015.28 and 11,782.12 is: 16,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.56 : 26,015.28 = 11,782.12 : x
  2. Step 2: Convert to fraction form
    18,851.56/26,015.28 = 11,782.12/x
  3. Step 3: Cross multiply
    18,851.56x = 26,015.28 × 11,782.12
  4. Step 4: Simplify right side
    18,851.56x = 306,515,150.79
  5. Step 5: Solve for x
    x = 306,515,150.79/18,851.56
  6. Step 6: Final answer
    x = 16,259.41

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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.