Home / 12,782.04-19,175.94-3,898.16

Finding the Fourth Proportional to 12,782.04, 19,175.94 and 3,898.16

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Solution

The fourth proportional to 12,782.04, 19,175.94 and 3,898.16 is: 5,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.04 : 19,175.94 = 3,898.16 : x
  2. Step 2: Convert to fraction form
    12,782.04/19,175.94 = 3,898.16/x
  3. Step 3: Cross multiply
    12,782.04x = 19,175.94 × 3,898.16
  4. Step 4: Simplify right side
    12,782.04x = 74,750,786.39
  5. Step 5: Solve for x
    x = 74,750,786.39/12,782.04
  6. Step 6: Final answer
    x = 5,848.11

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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.