Home / 10,138.15-15,183.73-9,787.83

Finding the Fourth Proportional to 10,138.15, 15,183.73 and 9,787.83

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Solution

The fourth proportional to 10,138.15, 15,183.73 and 9,787.83 is: 14,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.15 : 15,183.73 = 9,787.83 : x
  2. Step 2: Convert to fraction form
    10,138.15/15,183.73 = 9,787.83/x
  3. Step 3: Cross multiply
    10,138.15x = 15,183.73 × 9,787.83
  4. Step 4: Simplify right side
    10,138.15x = 148,615,768.01
  5. Step 5: Solve for x
    x = 148,615,768.01/10,138.15
  6. Step 6: Final answer
    x = 14,659.06

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1.5x scale

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.