Home / 13,695.24-18,899.52-8,028.72

Finding the Fourth Proportional to 13,695.24, 18,899.52 and 8,028.72

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Solution

The fourth proportional to 13,695.24, 18,899.52 and 8,028.72 is: 11,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.24 : 18,899.52 = 8,028.72 : x
  2. Step 2: Convert to fraction form
    13,695.24/18,899.52 = 8,028.72/x
  3. Step 3: Cross multiply
    13,695.24x = 18,899.52 × 8,028.72
  4. Step 4: Simplify right side
    13,695.24x = 151,738,954.21
  5. Step 5: Solve for x
    x = 151,738,954.21/13,695.24
  6. Step 6: Final answer
    x = 11,079.69

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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.