Home / 9,786.20-14,653.38-5,155.16

Finding the Fourth Proportional to 9,786.20, 14,653.38 and 5,155.16

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Solution

The fourth proportional to 9,786.20, 14,653.38 and 5,155.16 is: 7,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.20 : 14,653.38 = 5,155.16 : x
  2. Step 2: Convert to fraction form
    9,786.20/14,653.38 = 5,155.16/x
  3. Step 3: Cross multiply
    9,786.20x = 14,653.38 × 5,155.16
  4. Step 4: Simplify right side
    9,786.20x = 75,540,518.44
  5. Step 5: Solve for x
    x = 75,540,518.44/9,786.20
  6. Step 6: Final answer
    x = 7,719.09

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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.