Home / 18,646-25,731.56-10,263.28

Finding the Fourth Proportional to 18,646, 25,731.56 and 10,263.28

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Solution

The fourth proportional to 18,646, 25,731.56 and 10,263.28 is: 14,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646 : 25,731.56 = 10,263.28 : x
  2. Step 2: Convert to fraction form
    18,646/25,731.56 = 10,263.28/x
  3. Step 3: Cross multiply
    18,646x = 25,731.56 × 10,263.28
  4. Step 4: Simplify right side
    18,646x = 264,090,205.12
  5. Step 5: Solve for x
    x = 264,090,205.12/18,646
  6. Step 6: Final answer
    x = 14,163.37

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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.