Home / 12,863.81-19,298.96-3,629.81

Finding the Fourth Proportional to 12,863.81, 19,298.96 and 3,629.81

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Solution

The fourth proportional to 12,863.81, 19,298.96 and 3,629.81 is: 5,445.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.81 : 19,298.96 = 3,629.81 : x
  2. Step 2: Convert to fraction form
    12,863.81/19,298.96 = 3,629.81/x
  3. Step 3: Cross multiply
    12,863.81x = 19,298.96 × 3,629.81
  4. Step 4: Simplify right side
    12,863.81x = 70,051,601.71
  5. Step 5: Solve for x
    x = 70,051,601.71/12,863.81
  6. Step 6: Final answer
    x = 5,445.63

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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.