Home / 8,563.56-12,847.38-2,720.16

Finding the Fourth Proportional to 8,563.56, 12,847.38 and 2,720.16

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Solution

The fourth proportional to 8,563.56, 12,847.38 and 2,720.16 is: 4,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.56 : 12,847.38 = 2,720.16 : x
  2. Step 2: Convert to fraction form
    8,563.56/12,847.38 = 2,720.16/x
  3. Step 3: Cross multiply
    8,563.56x = 12,847.38 × 2,720.16
  4. Step 4: Simplify right side
    8,563.56x = 34,946,929.18
  5. Step 5: Solve for x
    x = 34,946,929.18/8,563.56
  6. Step 6: Final answer
    x = 4,080.89

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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.