Home / 10,819.24-14,930.40-6,105.04

Finding the Fourth Proportional to 10,819.24, 14,930.40 and 6,105.04

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Solution

The fourth proportional to 10,819.24, 14,930.40 and 6,105.04 is: 8,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.24 : 14,930.40 = 6,105.04 : x
  2. Step 2: Convert to fraction form
    10,819.24/14,930.40 = 6,105.04/x
  3. Step 3: Cross multiply
    10,819.24x = 14,930.40 × 6,105.04
  4. Step 4: Simplify right side
    10,819.24x = 91,150,689.22
  5. Step 5: Solve for x
    x = 91,150,689.22/10,819.24
  6. Step 6: Final answer
    x = 8,424.87

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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.