Home / 13,436.16-18,550.17-8,664.36

Finding the Fourth Proportional to 13,436.16, 18,550.17 and 8,664.36

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Solution

The fourth proportional to 13,436.16, 18,550.17 and 8,664.36 is: 11,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.16 : 18,550.17 = 8,664.36 : x
  2. Step 2: Convert to fraction form
    13,436.16/18,550.17 = 8,664.36/x
  3. Step 3: Cross multiply
    13,436.16x = 18,550.17 × 8,664.36
  4. Step 4: Simplify right side
    13,436.16x = 160,725,350.94
  5. Step 5: Solve for x
    x = 160,725,350.94/13,436.16
  6. Step 6: Final answer
    x = 11,962.15

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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.