Home / 13,664.30-18,867.13-13,446.41

Finding the Fourth Proportional to 13,664.30, 18,867.13 and 13,446.41

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Solution

The fourth proportional to 13,664.30, 18,867.13 and 13,446.41 is: 18,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.30 : 18,867.13 = 13,446.41 : x
  2. Step 2: Convert to fraction form
    13,664.30/18,867.13 = 13,446.41/x
  3. Step 3: Cross multiply
    13,664.30x = 18,867.13 × 13,446.41
  4. Step 4: Simplify right side
    13,664.30x = 253,695,037.55
  5. Step 5: Solve for x
    x = 253,695,037.55/13,664.30
  6. Step 6: Final answer
    x = 18,566.27

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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.