Home / 18,735.72-25,857.30-11,565.24

Finding the Fourth Proportional to 18,735.72, 25,857.30 and 11,565.24

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Solution

The fourth proportional to 18,735.72, 25,857.30 and 11,565.24 is: 15,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.72 : 25,857.30 = 11,565.24 : x
  2. Step 2: Convert to fraction form
    18,735.72/25,857.30 = 11,565.24/x
  3. Step 3: Cross multiply
    18,735.72x = 25,857.30 × 11,565.24
  4. Step 4: Simplify right side
    18,735.72x = 299,045,880.25
  5. Step 5: Solve for x
    x = 299,045,880.25/18,735.72
  6. Step 6: Final answer
    x = 15,961.27

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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.