Home / 10,819.74-14,931.09-6,105.54

Finding the Fourth Proportional to 10,819.74, 14,931.09 and 6,105.54

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Solution

The fourth proportional to 10,819.74, 14,931.09 and 6,105.54 is: 8,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.74 : 14,931.09 = 6,105.54 : x
  2. Step 2: Convert to fraction form
    10,819.74/14,931.09 = 6,105.54/x
  3. Step 3: Cross multiply
    10,819.74x = 14,931.09 × 6,105.54
  4. Step 4: Simplify right side
    10,819.74x = 91,162,367.24
  5. Step 5: Solve for x
    x = 91,162,367.24/10,819.74
  6. Step 6: Final answer
    x = 8,425.56

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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.