Home / 11,638.22-17,486.50-10,938.38

Finding the Fourth Proportional to 11,638.22, 17,486.50 and 10,938.38

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Solution

The fourth proportional to 11,638.22, 17,486.50 and 10,938.38 is: 16,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.22 : 17,486.50 = 10,938.38 : x
  2. Step 2: Convert to fraction form
    11,638.22/17,486.50 = 10,938.38/x
  3. Step 3: Cross multiply
    11,638.22x = 17,486.50 × 10,938.38
  4. Step 4: Simplify right side
    11,638.22x = 191,273,981.87
  5. Step 5: Solve for x
    x = 191,273,981.87/11,638.22
  6. Step 6: Final answer
    x = 16,434.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.