Home / 18,296.54-25,223.36-12,989.42

Finding the Fourth Proportional to 18,296.54, 25,223.36 and 12,989.42

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Solution

The fourth proportional to 18,296.54, 25,223.36 and 12,989.42 is: 17,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.54 : 25,223.36 = 12,989.42 : x
  2. Step 2: Convert to fraction form
    18,296.54/25,223.36 = 12,989.42/x
  3. Step 3: Cross multiply
    18,296.54x = 25,223.36 × 12,989.42
  4. Step 4: Simplify right side
    18,296.54x = 327,636,816.85
  5. Step 5: Solve for x
    x = 327,636,816.85/18,296.54
  6. Step 6: Final answer
    x = 17,907.04

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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.