Home / 15,724.33-21,718.73-11,763.02

Finding the Fourth Proportional to 15,724.33, 21,718.73 and 11,763.02

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Solution

The fourth proportional to 15,724.33, 21,718.73 and 11,763.02 is: 16,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.33 : 21,718.73 = 11,763.02 : x
  2. Step 2: Convert to fraction form
    15,724.33/21,718.73 = 11,763.02/x
  3. Step 3: Cross multiply
    15,724.33x = 21,718.73 × 11,763.02
  4. Step 4: Simplify right side
    15,724.33x = 255,477,939.07
  5. Step 5: Solve for x
    x = 255,477,939.07/15,724.33
  6. Step 6: Final answer
    x = 16,247.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.