Home / 11,154.91-15,394.77-6,120.11

Finding the Fourth Proportional to 11,154.91, 15,394.77 and 6,120.11

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Solution

The fourth proportional to 11,154.91, 15,394.77 and 6,120.11 is: 8,446.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.91 : 15,394.77 = 6,120.11 : x
  2. Step 2: Convert to fraction form
    11,154.91/15,394.77 = 6,120.11/x
  3. Step 3: Cross multiply
    11,154.91x = 15,394.77 × 6,120.11
  4. Step 4: Simplify right side
    11,154.91x = 94,217,578.25
  5. Step 5: Solve for x
    x = 94,217,578.25/11,154.91
  6. Step 6: Final answer
    x = 8,446.29

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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.