Home / 25,786.35-38,680.34-9,146.12

Finding the Fourth Proportional to 25,786.35, 38,680.34 and 9,146.12

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Solution

The fourth proportional to 25,786.35, 38,680.34 and 9,146.12 is: 13,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.35 : 38,680.34 = 9,146.12 : x
  2. Step 2: Convert to fraction form
    25,786.35/38,680.34 = 9,146.12/x
  3. Step 3: Cross multiply
    25,786.35x = 38,680.34 × 9,146.12
  4. Step 4: Simplify right side
    25,786.35x = 353,774,792.15
  5. Step 5: Solve for x
    x = 353,774,792.15/25,786.35
  6. Step 6: Final answer
    x = 13,719.46

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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.