Home / 13,687.32-18,893.22-8,023.88

Finding the Fourth Proportional to 13,687.32, 18,893.22 and 8,023.88

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Solution

The fourth proportional to 13,687.32, 18,893.22 and 8,023.88 is: 11,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.32 : 18,893.22 = 8,023.88 : x
  2. Step 2: Convert to fraction form
    13,687.32/18,893.22 = 8,023.88/x
  3. Step 3: Cross multiply
    13,687.32x = 18,893.22 × 8,023.88
  4. Step 4: Simplify right side
    13,687.32x = 151,596,930.09
  5. Step 5: Solve for x
    x = 151,596,930.09/13,687.32
  6. Step 6: Final answer
    x = 11,075.72

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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.