Home / 12,382.96-18,574.46-4,383.68

Finding the Fourth Proportional to 12,382.96, 18,574.46 and 4,383.68

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Solution

The fourth proportional to 12,382.96, 18,574.46 and 4,383.68 is: 6,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.96 : 18,574.46 = 4,383.68 : x
  2. Step 2: Convert to fraction form
    12,382.96/18,574.46 = 4,383.68/x
  3. Step 3: Cross multiply
    12,382.96x = 18,574.46 × 4,383.68
  4. Step 4: Simplify right side
    12,382.96x = 81,424,488.81
  5. Step 5: Solve for x
    x = 81,424,488.81/12,382.96
  6. Step 6: Final answer
    x = 6,575.53

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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.