Home / 12,790.49-19,186.58-4,353.55

Finding the Fourth Proportional to 12,790.49, 19,186.58 and 4,353.55

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Solution

The fourth proportional to 12,790.49, 19,186.58 and 4,353.55 is: 6,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.49 : 19,186.58 = 4,353.55 : x
  2. Step 2: Convert to fraction form
    12,790.49/19,186.58 = 4,353.55/x
  3. Step 3: Cross multiply
    12,790.49x = 19,186.58 × 4,353.55
  4. Step 4: Simplify right side
    12,790.49x = 83,529,698.28
  5. Step 5: Solve for x
    x = 83,529,698.28/12,790.49
  6. Step 6: Final answer
    x = 6,530.61

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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.