Home / 13,664.58-18,857.46-7,696.46

Finding the Fourth Proportional to 13,664.58, 18,857.46 and 7,696.46

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Solution

The fourth proportional to 13,664.58, 18,857.46 and 7,696.46 is: 10,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.58 : 18,857.46 = 7,696.46 : x
  2. Step 2: Convert to fraction form
    13,664.58/18,857.46 = 7,696.46/x
  3. Step 3: Cross multiply
    13,664.58x = 18,857.46 × 7,696.46
  4. Step 4: Simplify right side
    13,664.58x = 145,135,592.30
  5. Step 5: Solve for x
    x = 145,135,592.30/13,664.58
  6. Step 6: Final answer
    x = 10,621.30

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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.