Home / 12,790.37-17,650.68-7,486.19

Finding the Fourth Proportional to 12,790.37, 17,650.68 and 7,486.19

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Solution

The fourth proportional to 12,790.37, 17,650.68 and 7,486.19 is: 10,330.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.37 : 17,650.68 = 7,486.19 : x
  2. Step 2: Convert to fraction form
    12,790.37/17,650.68 = 7,486.19/x
  3. Step 3: Cross multiply
    12,790.37x = 17,650.68 × 7,486.19
  4. Step 4: Simplify right side
    12,790.37x = 132,136,255.86
  5. Step 5: Solve for x
    x = 132,136,255.86/12,790.37
  6. Step 6: Final answer
    x = 10,330.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.