Home / 18,409.03-25,403.88-10,855.83

Finding the Fourth Proportional to 18,409.03, 25,403.88 and 10,855.83

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Solution

The fourth proportional to 18,409.03, 25,403.88 and 10,855.83 is: 14,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.03 : 25,403.88 = 10,855.83 : x
  2. Step 2: Convert to fraction form
    18,409.03/25,403.88 = 10,855.83/x
  3. Step 3: Cross multiply
    18,409.03x = 25,403.88 × 10,855.83
  4. Step 4: Simplify right side
    18,409.03x = 275,780,202.62
  5. Step 5: Solve for x
    x = 275,780,202.62/18,409.03
  6. Step 6: Final answer
    x = 14,980.70

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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.