Home / 13,743.09-20,611.80-6,715.89

Finding the Fourth Proportional to 13,743.09, 20,611.80 and 6,715.89

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Solution

The fourth proportional to 13,743.09, 20,611.80 and 6,715.89 is: 10,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.09 : 20,611.80 = 6,715.89 : x
  2. Step 2: Convert to fraction form
    13,743.09/20,611.80 = 6,715.89/x
  3. Step 3: Cross multiply
    13,743.09x = 20,611.80 × 6,715.89
  4. Step 4: Simplify right side
    13,743.09x = 138,426,581.50
  5. Step 5: Solve for x
    x = 138,426,581.50/13,743.09
  6. Step 6: Final answer
    x = 10,072.45

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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.