Home / 18,712.07-25,816.35-11,638.07

Finding the Fourth Proportional to 18,712.07, 25,816.35 and 11,638.07

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Solution

The fourth proportional to 18,712.07, 25,816.35 and 11,638.07 is: 16,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.07 : 25,816.35 = 11,638.07 : x
  2. Step 2: Convert to fraction form
    18,712.07/25,816.35 = 11,638.07/x
  3. Step 3: Cross multiply
    18,712.07x = 25,816.35 × 11,638.07
  4. Step 4: Simplify right side
    18,712.07x = 300,452,488.44
  5. Step 5: Solve for x
    x = 300,452,488.44/18,712.07
  6. Step 6: Final answer
    x = 16,056.61

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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.