Home / 11,014.29-15,199.80-5,978.60

Finding the Fourth Proportional to 11,014.29, 15,199.80 and 5,978.60

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Solution

The fourth proportional to 11,014.29, 15,199.80 and 5,978.60 is: 8,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,014.29 : 15,199.80 = 5,978.60 : x
  2. Step 2: Convert to fraction form
    11,014.29/15,199.80 = 5,978.60/x
  3. Step 3: Cross multiply
    11,014.29x = 15,199.80 × 5,978.60
  4. Step 4: Simplify right side
    11,014.29x = 90,873,524.28
  5. Step 5: Solve for x
    x = 90,873,524.28/11,014.29
  6. Step 6: Final answer
    x = 8,250.51

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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.