Home / 18,705.75-25,814.48-10,322.79

Finding the Fourth Proportional to 18,705.75, 25,814.48 and 10,322.79

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Solution

The fourth proportional to 18,705.75, 25,814.48 and 10,322.79 is: 14,245.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.75 : 25,814.48 = 10,322.79 : x
  2. Step 2: Convert to fraction form
    18,705.75/25,814.48 = 10,322.79/x
  3. Step 3: Cross multiply
    18,705.75x = 25,814.48 × 10,322.79
  4. Step 4: Simplify right side
    18,705.75x = 266,477,456.00
  5. Step 5: Solve for x
    x = 266,477,456.00/18,705.75
  6. Step 6: Final answer
    x = 14,245.75

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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.