Home / 13,147.26-19,722.69-6,123.66

Finding the Fourth Proportional to 13,147.26, 19,722.69 and 6,123.66

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Solution

The fourth proportional to 13,147.26, 19,722.69 and 6,123.66 is: 9,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.26 : 19,722.69 = 6,123.66 : x
  2. Step 2: Convert to fraction form
    13,147.26/19,722.69 = 6,123.66/x
  3. Step 3: Cross multiply
    13,147.26x = 19,722.69 × 6,123.66
  4. Step 4: Simplify right side
    13,147.26x = 120,775,047.85
  5. Step 5: Solve for x
    x = 120,775,047.85/13,147.26
  6. Step 6: Final answer
    x = 9,186.33

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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.