Home / 17,647.76-26,471.64-7,122.56

Finding the Fourth Proportional to 17,647.76, 26,471.64 and 7,122.56

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Solution

The fourth proportional to 17,647.76, 26,471.64 and 7,122.56 is: 10,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,647.76 : 26,471.64 = 7,122.56 : x
  2. Step 2: Convert to fraction form
    17,647.76/26,471.64 = 7,122.56/x
  3. Step 3: Cross multiply
    17,647.76x = 26,471.64 × 7,122.56
  4. Step 4: Simplify right side
    17,647.76x = 188,545,844.20
  5. Step 5: Solve for x
    x = 188,545,844.20/17,647.76
  6. Step 6: Final answer
    x = 10,683.84

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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.