Home / 15,676.57-21,634.19-8,603.38

Finding the Fourth Proportional to 15,676.57, 21,634.19 and 8,603.38

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Solution

The fourth proportional to 15,676.57, 21,634.19 and 8,603.38 is: 11,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.57 : 21,634.19 = 8,603.38 : x
  2. Step 2: Convert to fraction form
    15,676.57/21,634.19 = 8,603.38/x
  3. Step 3: Cross multiply
    15,676.57x = 21,634.19 × 8,603.38
  4. Step 4: Simplify right side
    15,676.57x = 186,127,157.56
  5. Step 5: Solve for x
    x = 186,127,157.56/15,676.57
  6. Step 6: Final answer
    x = 11,872.95

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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.