Home / 13,252.39-19,828.21-8,168.36

Finding the Fourth Proportional to 13,252.39, 19,828.21 and 8,168.36

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Solution

The fourth proportional to 13,252.39, 19,828.21 and 8,168.36 is: 12,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.39 : 19,828.21 = 8,168.36 : x
  2. Step 2: Convert to fraction form
    13,252.39/19,828.21 = 8,168.36/x
  3. Step 3: Cross multiply
    13,252.39x = 19,828.21 × 8,168.36
  4. Step 4: Simplify right side
    13,252.39x = 161,963,957.44
  5. Step 5: Solve for x
    x = 161,963,957.44/13,252.39
  6. Step 6: Final answer
    x = 12,221.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.