Home / 15,945.60-23,919.60-4,258.56

Finding the Fourth Proportional to 15,945.60, 23,919.60 and 4,258.56

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Solution

The fourth proportional to 15,945.60, 23,919.60 and 4,258.56 is: 6,388.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.60 : 23,919.60 = 4,258.56 : x
  2. Step 2: Convert to fraction form
    15,945.60/23,919.60 = 4,258.56/x
  3. Step 3: Cross multiply
    15,945.60x = 23,919.60 × 4,258.56
  4. Step 4: Simplify right side
    15,945.60x = 101,863,051.78
  5. Step 5: Solve for x
    x = 101,863,051.78/15,945.60
  6. Step 6: Final answer
    x = 6,388.16

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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.