Home / 11,611.79-17,417.91-3,715.80

Finding the Fourth Proportional to 11,611.79, 17,417.91 and 3,715.80

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Solution

The fourth proportional to 11,611.79, 17,417.91 and 3,715.80 is: 5,573.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.79 : 17,417.91 = 3,715.80 : x
  2. Step 2: Convert to fraction form
    11,611.79/17,417.91 = 3,715.80/x
  3. Step 3: Cross multiply
    11,611.79x = 17,417.91 × 3,715.80
  4. Step 4: Simplify right side
    11,611.79x = 64,721,469.98
  5. Step 5: Solve for x
    x = 64,721,469.98/11,611.79
  6. Step 6: Final answer
    x = 5,573.77

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1.5x scale

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.