Home / 17,148.68-23,678.60-13,163.48

Finding the Fourth Proportional to 17,148.68, 23,678.60 and 13,163.48

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Solution

The fourth proportional to 17,148.68, 23,678.60 and 13,163.48 is: 18,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,148.68 : 23,678.60 = 13,163.48 : x
  2. Step 2: Convert to fraction form
    17,148.68/23,678.60 = 13,163.48/x
  3. Step 3: Cross multiply
    17,148.68x = 23,678.60 × 13,163.48
  4. Step 4: Simplify right side
    17,148.68x = 311,692,777.53
  5. Step 5: Solve for x
    x = 311,692,777.53/17,148.68
  6. Step 6: Final answer
    x = 18,175.90

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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.