Home / 12,922.23-19,382.88-3,688.23

Finding the Fourth Proportional to 12,922.23, 19,382.88 and 3,688.23

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Solution

The fourth proportional to 12,922.23, 19,382.88 and 3,688.23 is: 5,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.23 : 19,382.88 = 3,688.23 : x
  2. Step 2: Convert to fraction form
    12,922.23/19,382.88 = 3,688.23/x
  3. Step 3: Cross multiply
    12,922.23x = 19,382.88 × 3,688.23
  4. Step 4: Simplify right side
    12,922.23x = 71,488,519.50
  5. Step 5: Solve for x
    x = 71,488,519.50/12,922.23
  6. Step 6: Final answer
    x = 5,532.21

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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.