Home / 13,039.08-19,561.50-7,192.68

Finding the Fourth Proportional to 13,039.08, 19,561.50 and 7,192.68

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Solution

The fourth proportional to 13,039.08, 19,561.50 and 7,192.68 is: 10,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.08 : 19,561.50 = 7,192.68 : x
  2. Step 2: Convert to fraction form
    13,039.08/19,561.50 = 7,192.68/x
  3. Step 3: Cross multiply
    13,039.08x = 19,561.50 × 7,192.68
  4. Step 4: Simplify right side
    13,039.08x = 140,699,609.82
  5. Step 5: Solve for x
    x = 140,699,609.82/13,039.08
  6. Step 6: Final answer
    x = 10,790.61

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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.