Home / 12,688.06-19,033.91-3,923.66

Finding the Fourth Proportional to 12,688.06, 19,033.91 and 3,923.66

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Solution

The fourth proportional to 12,688.06, 19,033.91 and 3,923.66 is: 5,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.06 : 19,033.91 = 3,923.66 : x
  2. Step 2: Convert to fraction form
    12,688.06/19,033.91 = 3,923.66/x
  3. Step 3: Cross multiply
    12,688.06x = 19,033.91 × 3,923.66
  4. Step 4: Simplify right side
    12,688.06x = 74,682,496.14
  5. Step 5: Solve for x
    x = 74,682,496.14/12,688.06
  6. Step 6: Final answer
    x = 5,886.05

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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.