Home / 11,143.05-15,377.34-6,107.58

Finding the Fourth Proportional to 11,143.05, 15,377.34 and 6,107.58

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Solution

The fourth proportional to 11,143.05, 15,377.34 and 6,107.58 is: 8,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.05 : 15,377.34 = 6,107.58 : x
  2. Step 2: Convert to fraction form
    11,143.05/15,377.34 = 6,107.58/x
  3. Step 3: Cross multiply
    11,143.05x = 15,377.34 × 6,107.58
  4. Step 4: Simplify right side
    11,143.05x = 93,918,334.24
  5. Step 5: Solve for x
    x = 93,918,334.24/11,143.05
  6. Step 6: Final answer
    x = 8,428.42

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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.