Home / 18,518.72-25,529.22-13,204.32

Finding the Fourth Proportional to 18,518.72, 25,529.22 and 13,204.32

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Solution

The fourth proportional to 18,518.72, 25,529.22 and 13,204.32 is: 18,202.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.72 : 25,529.22 = 13,204.32 : x
  2. Step 2: Convert to fraction form
    18,518.72/25,529.22 = 13,204.32/x
  3. Step 3: Cross multiply
    18,518.72x = 25,529.22 × 13,204.32
  4. Step 4: Simplify right side
    18,518.72x = 337,095,990.23
  5. Step 5: Solve for x
    x = 337,095,990.23/18,518.72
  6. Step 6: Final answer
    x = 18,202.99

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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.