Home / 13,664.43-18,857.10-8,002.47

Finding the Fourth Proportional to 13,664.43, 18,857.10 and 8,002.47

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Solution

The fourth proportional to 13,664.43, 18,857.10 and 8,002.47 is: 11,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.43 : 18,857.10 = 8,002.47 : x
  2. Step 2: Convert to fraction form
    13,664.43/18,857.10 = 8,002.47/x
  3. Step 3: Cross multiply
    13,664.43x = 18,857.10 × 8,002.47
  4. Step 4: Simplify right side
    13,664.43x = 150,903,377.04
  5. Step 5: Solve for x
    x = 150,903,377.04/13,664.43
  6. Step 6: Final answer
    x = 11,043.52

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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.