Home / 12,660.32-17,461.28-11,811.50

Finding the Fourth Proportional to 12,660.32, 17,461.28 and 11,811.50

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Solution

The fourth proportional to 12,660.32, 17,461.28 and 11,811.50 is: 16,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.32 : 17,461.28 = 11,811.50 : x
  2. Step 2: Convert to fraction form
    12,660.32/17,461.28 = 11,811.50/x
  3. Step 3: Cross multiply
    12,660.32x = 17,461.28 × 11,811.50
  4. Step 4: Simplify right side
    12,660.32x = 206,243,908.72
  5. Step 5: Solve for x
    x = 206,243,908.72/12,660.32
  6. Step 6: Final answer
    x = 16,290.58

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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.