Home / 12,864.25-19,296.38-3,136.25

Finding the Fourth Proportional to 12,864.25, 19,296.38 and 3,136.25

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Solution

The fourth proportional to 12,864.25, 19,296.38 and 3,136.25 is: 4,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.25 : 19,296.38 = 3,136.25 : x
  2. Step 2: Convert to fraction form
    12,864.25/19,296.38 = 3,136.25/x
  3. Step 3: Cross multiply
    12,864.25x = 19,296.38 × 3,136.25
  4. Step 4: Simplify right side
    12,864.25x = 60,518,256.09
  5. Step 5: Solve for x
    x = 60,518,256.09/12,864.25
  6. Step 6: Final answer
    x = 4,704.38

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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.