Home / 12,785.08-19,178.73-3,902.41

Finding the Fourth Proportional to 12,785.08, 19,178.73 and 3,902.41

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Solution

The fourth proportional to 12,785.08, 19,178.73 and 3,902.41 is: 5,853.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.08 : 19,178.73 = 3,902.41 : x
  2. Step 2: Convert to fraction form
    12,785.08/19,178.73 = 3,902.41/x
  3. Step 3: Cross multiply
    12,785.08x = 19,178.73 × 3,902.41
  4. Step 4: Simplify right side
    12,785.08x = 74,843,219.79
  5. Step 5: Solve for x
    x = 74,843,219.79/12,785.08
  6. Step 6: Final answer
    x = 5,853.95

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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.