Home / 12,124.48-16,731.78-6,819.41

Finding the Fourth Proportional to 12,124.48, 16,731.78 and 6,819.41

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Solution

The fourth proportional to 12,124.48, 16,731.78 and 6,819.41 is: 9,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.48 : 16,731.78 = 6,819.41 : x
  2. Step 2: Convert to fraction form
    12,124.48/16,731.78 = 6,819.41/x
  3. Step 3: Cross multiply
    12,124.48x = 16,731.78 × 6,819.41
  4. Step 4: Simplify right side
    12,124.48x = 114,100,828.35
  5. Step 5: Solve for x
    x = 114,100,828.35/12,124.48
  6. Step 6: Final answer
    x = 9,410.78

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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.