Home / 12,816.68-19,225.78-3,582.68

Finding the Fourth Proportional to 12,816.68, 19,225.78 and 3,582.68

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Solution

The fourth proportional to 12,816.68, 19,225.78 and 3,582.68 is: 5,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.68 : 19,225.78 = 3,582.68 : x
  2. Step 2: Convert to fraction form
    12,816.68/19,225.78 = 3,582.68/x
  3. Step 3: Cross multiply
    12,816.68x = 19,225.78 × 3,582.68
  4. Step 4: Simplify right side
    12,816.68x = 68,879,817.49
  5. Step 5: Solve for x
    x = 68,879,817.49/12,816.68
  6. Step 6: Final answer
    x = 5,374.23

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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.