Home / 12,105.05-16,698.24-11,248.81

Finding the Fourth Proportional to 12,105.05, 16,698.24 and 11,248.81

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Solution

The fourth proportional to 12,105.05, 16,698.24 and 11,248.81 is: 15,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.05 : 16,698.24 = 11,248.81 : x
  2. Step 2: Convert to fraction form
    12,105.05/16,698.24 = 11,248.81/x
  3. Step 3: Cross multiply
    12,105.05x = 16,698.24 × 11,248.81
  4. Step 4: Simplify right side
    12,105.05x = 187,835,341.98
  5. Step 5: Solve for x
    x = 187,835,341.98/12,105.05
  6. Step 6: Final answer
    x = 15,517.11

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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.