Home / 19,290.93-28,940.99-6,143.28

Finding the Fourth Proportional to 19,290.93, 28,940.99 and 6,143.28

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Solution

The fourth proportional to 19,290.93, 28,940.99 and 6,143.28 is: 9,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.93 : 28,940.99 = 6,143.28 : x
  2. Step 2: Convert to fraction form
    19,290.93/28,940.99 = 6,143.28/x
  3. Step 3: Cross multiply
    19,290.93x = 28,940.99 × 6,143.28
  4. Step 4: Simplify right side
    19,290.93x = 177,792,574.33
  5. Step 5: Solve for x
    x = 177,792,574.33/19,290.93
  6. Step 6: Final answer
    x = 9,216.38

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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.