Home / 12,646.04-18,972.14-4,212.52

Finding the Fourth Proportional to 12,646.04, 18,972.14 and 4,212.52

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Solution

The fourth proportional to 12,646.04, 18,972.14 and 4,212.52 is: 6,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.04 : 18,972.14 = 4,212.52 : x
  2. Step 2: Convert to fraction form
    12,646.04/18,972.14 = 4,212.52/x
  3. Step 3: Cross multiply
    12,646.04x = 18,972.14 × 4,212.52
  4. Step 4: Simplify right side
    12,646.04x = 79,920,450.70
  5. Step 5: Solve for x
    x = 79,920,450.70/12,646.04
  6. Step 6: Final answer
    x = 6,319.80

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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.