Home / 12,313.77-18,473.54-3,993.78

Finding the Fourth Proportional to 12,313.77, 18,473.54 and 3,993.78

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Solution

The fourth proportional to 12,313.77, 18,473.54 and 3,993.78 is: 5,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.77 : 18,473.54 = 3,993.78 : x
  2. Step 2: Convert to fraction form
    12,313.77/18,473.54 = 3,993.78/x
  3. Step 3: Cross multiply
    12,313.77x = 18,473.54 × 3,993.78
  4. Step 4: Simplify right side
    12,313.77x = 73,779,254.58
  5. Step 5: Solve for x
    x = 73,779,254.58/12,313.77
  6. Step 6: Final answer
    x = 5,991.61

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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.