Home / 13,757.96-18,987.14-8,454.62

Finding the Fourth Proportional to 13,757.96, 18,987.14 and 8,454.62

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Solution

The fourth proportional to 13,757.96, 18,987.14 and 8,454.62 is: 11,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.96 : 18,987.14 = 8,454.62 : x
  2. Step 2: Convert to fraction form
    13,757.96/18,987.14 = 8,454.62/x
  3. Step 3: Cross multiply
    13,757.96x = 18,987.14 × 8,454.62
  4. Step 4: Simplify right side
    13,757.96x = 160,529,053.59
  5. Step 5: Solve for x
    x = 160,529,053.59/13,757.96
  6. Step 6: Final answer
    x = 11,668.09

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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.