Home / 15,735.94-21,715.43-8,662.22

Finding the Fourth Proportional to 15,735.94, 21,715.43 and 8,662.22

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Solution

The fourth proportional to 15,735.94, 21,715.43 and 8,662.22 is: 11,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,735.94 : 21,715.43 = 8,662.22 : x
  2. Step 2: Convert to fraction form
    15,735.94/21,715.43 = 8,662.22/x
  3. Step 3: Cross multiply
    15,735.94x = 21,715.43 × 8,662.22
  4. Step 4: Simplify right side
    15,735.94x = 188,103,832.05
  5. Step 5: Solve for x
    x = 188,103,832.05/15,735.94
  6. Step 6: Final answer
    x = 11,953.77

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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.