Home / 18,383.88-25,370.01-10,000.38

Finding the Fourth Proportional to 18,383.88, 25,370.01 and 10,000.38

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Solution

The fourth proportional to 18,383.88, 25,370.01 and 10,000.38 is: 13,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.88 : 25,370.01 = 10,000.38 : x
  2. Step 2: Convert to fraction form
    18,383.88/25,370.01 = 10,000.38/x
  3. Step 3: Cross multiply
    18,383.88x = 25,370.01 × 10,000.38
  4. Step 4: Simplify right side
    18,383.88x = 253,709,740.60
  5. Step 5: Solve for x
    x = 253,709,740.60/18,383.88
  6. Step 6: Final answer
    x = 13,800.66

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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.