Home / 11,681.64-17,520.60-3,359.76

Finding the Fourth Proportional to 11,681.64, 17,520.60 and 3,359.76

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Solution

The fourth proportional to 11,681.64, 17,520.60 and 3,359.76 is: 5,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.64 : 17,520.60 = 3,359.76 : x
  2. Step 2: Convert to fraction form
    11,681.64/17,520.60 = 3,359.76/x
  3. Step 3: Cross multiply
    11,681.64x = 17,520.60 × 3,359.76
  4. Step 4: Simplify right side
    11,681.64x = 58,865,011.06
  5. Step 5: Solve for x
    x = 58,865,011.06/11,681.64
  6. Step 6: Final answer
    x = 5,039.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.