Home / 11,139.70-15,372.77-6,104.23

Finding the Fourth Proportional to 11,139.70, 15,372.77 and 6,104.23

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Solution

The fourth proportional to 11,139.70, 15,372.77 and 6,104.23 is: 8,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.70 : 15,372.77 = 6,104.23 : x
  2. Step 2: Convert to fraction form
    11,139.70/15,372.77 = 6,104.23/x
  3. Step 3: Cross multiply
    11,139.70x = 15,372.77 × 6,104.23
  4. Step 4: Simplify right side
    11,139.70x = 93,838,893.30
  5. Step 5: Solve for x
    x = 93,838,893.30/11,139.70
  6. Step 6: Final answer
    x = 8,423.83

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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.