Home / 18,117.62-25,004.13-11,819.06

Finding the Fourth Proportional to 18,117.62, 25,004.13 and 11,819.06

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Solution

The fourth proportional to 18,117.62, 25,004.13 and 11,819.06 is: 16,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.62 : 25,004.13 = 11,819.06 : x
  2. Step 2: Convert to fraction form
    18,117.62/25,004.13 = 11,819.06/x
  3. Step 3: Cross multiply
    18,117.62x = 25,004.13 × 11,819.06
  4. Step 4: Simplify right side
    18,117.62x = 295,525,312.72
  5. Step 5: Solve for x
    x = 295,525,312.72/18,117.62
  6. Step 6: Final answer
    x = 16,311.49

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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.