Home / 11,513.27-15,874.57-8,156.63

Finding the Fourth Proportional to 11,513.27, 15,874.57 and 8,156.63

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Solution

The fourth proportional to 11,513.27, 15,874.57 and 8,156.63 is: 11,246.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.27 : 15,874.57 = 8,156.63 : x
  2. Step 2: Convert to fraction form
    11,513.27/15,874.57 = 8,156.63/x
  3. Step 3: Cross multiply
    11,513.27x = 15,874.57 × 8,156.63
  4. Step 4: Simplify right side
    11,513.27x = 129,482,993.90
  5. Step 5: Solve for x
    x = 129,482,993.90/11,513.27
  6. Step 6: Final answer
    x = 11,246.41

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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.