Home / 18,390.22-25,380.37-10,838.98

Finding the Fourth Proportional to 18,390.22, 25,380.37 and 10,838.98

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Solution

The fourth proportional to 18,390.22, 25,380.37 and 10,838.98 is: 14,958.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.22 : 25,380.37 = 10,838.98 : x
  2. Step 2: Convert to fraction form
    18,390.22/25,380.37 = 10,838.98/x
  3. Step 3: Cross multiply
    18,390.22x = 25,380.37 × 10,838.98
  4. Step 4: Simplify right side
    18,390.22x = 275,097,322.82
  5. Step 5: Solve for x
    x = 275,097,322.82/18,390.22
  6. Step 6: Final answer
    x = 14,958.89

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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.