Home / 11,715.40-17,570.33-3,393.21

Finding the Fourth Proportional to 11,715.40, 17,570.33 and 3,393.21

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Solution

The fourth proportional to 11,715.40, 17,570.33 and 3,393.21 is: 5,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.40 : 17,570.33 = 3,393.21 : x
  2. Step 2: Convert to fraction form
    11,715.40/17,570.33 = 3,393.21/x
  3. Step 3: Cross multiply
    11,715.40x = 17,570.33 × 3,393.21
  4. Step 4: Simplify right side
    11,715.40x = 59,619,819.46
  5. Step 5: Solve for x
    x = 59,619,819.46/11,715.40
  6. Step 6: Final answer
    x = 5,089.01

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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.