Home / 8,720.02-13,082.77-2,880.73

Finding the Fourth Proportional to 8,720.02, 13,082.77 and 2,880.73

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Solution

The fourth proportional to 8,720.02, 13,082.77 and 2,880.73 is: 4,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.02 : 13,082.77 = 2,880.73 : x
  2. Step 2: Convert to fraction form
    8,720.02/13,082.77 = 2,880.73/x
  3. Step 3: Cross multiply
    8,720.02x = 13,082.77 × 2,880.73
  4. Step 4: Simplify right side
    8,720.02x = 37,687,928.02
  5. Step 5: Solve for x
    x = 37,687,928.02/8,720.02
  6. Step 6: Final answer
    x = 4,322.00

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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.