Home / 19,143.23-28,665.62-11,725.19

Finding the Fourth Proportional to 19,143.23, 28,665.62 and 11,725.19

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Solution

The fourth proportional to 19,143.23, 28,665.62 and 11,725.19 is: 17,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.23 : 28,665.62 = 11,725.19 : x
  2. Step 2: Convert to fraction form
    19,143.23/28,665.62 = 11,725.19/x
  3. Step 3: Cross multiply
    19,143.23x = 28,665.62 × 11,725.19
  4. Step 4: Simplify right side
    19,143.23x = 336,109,639.01
  5. Step 5: Solve for x
    x = 336,109,639.01/19,143.23
  6. Step 6: Final answer
    x = 17,557.63

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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.