Home / 12,758.93-19,143.32-4,439.81

Finding the Fourth Proportional to 12,758.93, 19,143.32 and 4,439.81

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Solution

The fourth proportional to 12,758.93, 19,143.32 and 4,439.81 is: 6,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.93 : 19,143.32 = 4,439.81 : x
  2. Step 2: Convert to fraction form
    12,758.93/19,143.32 = 4,439.81/x
  3. Step 3: Cross multiply
    12,758.93x = 19,143.32 × 4,439.81
  4. Step 4: Simplify right side
    12,758.93x = 84,992,703.57
  5. Step 5: Solve for x
    x = 84,992,703.57/12,758.93
  6. Step 6: Final answer
    x = 6,661.43

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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.