Home / 13,589.96-18,736.79-8,801.45

Finding the Fourth Proportional to 13,589.96, 18,736.79 and 8,801.45

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Solution

The fourth proportional to 13,589.96, 18,736.79 and 8,801.45 is: 12,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.96 : 18,736.79 = 8,801.45 : x
  2. Step 2: Convert to fraction form
    13,589.96/18,736.79 = 8,801.45/x
  3. Step 3: Cross multiply
    13,589.96x = 18,736.79 × 8,801.45
  4. Step 4: Simplify right side
    13,589.96x = 164,910,782.65
  5. Step 5: Solve for x
    x = 164,910,782.65/13,589.96
  6. Step 6: Final answer
    x = 12,134.75

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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.