Home / 13,659.30-18,841.68-8,614.62

Finding the Fourth Proportional to 13,659.30, 18,841.68 and 8,614.62

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Solution

The fourth proportional to 13,659.30, 18,841.68 and 8,614.62 is: 11,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.30 : 18,841.68 = 8,614.62 : x
  2. Step 2: Convert to fraction form
    13,659.30/18,841.68 = 8,614.62/x
  3. Step 3: Cross multiply
    13,659.30x = 18,841.68 × 8,614.62
  4. Step 4: Simplify right side
    13,659.30x = 162,313,913.36
  5. Step 5: Solve for x
    x = 162,313,913.36/13,659.30
  6. Step 6: Final answer
    x = 11,883.03

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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.