Home / 13,693.96-18,897.77-8,028.86

Finding the Fourth Proportional to 13,693.96, 18,897.77 and 8,028.86

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Solution

The fourth proportional to 13,693.96, 18,897.77 and 8,028.86 is: 11,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.96 : 18,897.77 = 8,028.86 : x
  2. Step 2: Convert to fraction form
    13,693.96/18,897.77 = 8,028.86/x
  3. Step 3: Cross multiply
    13,693.96x = 18,897.77 × 8,028.86
  4. Step 4: Simplify right side
    13,693.96x = 151,727,475.23
  5. Step 5: Solve for x
    x = 151,727,475.23/13,693.96
  6. Step 6: Final answer
    x = 11,079.88

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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.