Home / 15,183.62-20,952.37-8,810.40

Finding the Fourth Proportional to 15,183.62, 20,952.37 and 8,810.40

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Solution

The fourth proportional to 15,183.62, 20,952.37 and 8,810.40 is: 12,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.62 : 20,952.37 = 8,810.40 : x
  2. Step 2: Convert to fraction form
    15,183.62/20,952.37 = 8,810.40/x
  3. Step 3: Cross multiply
    15,183.62x = 20,952.37 × 8,810.40
  4. Step 4: Simplify right side
    15,183.62x = 184,598,760.65
  5. Step 5: Solve for x
    x = 184,598,760.65/15,183.62
  6. Step 6: Final answer
    x = 12,157.76

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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.