Home / 8,855.07-13,256.87-5,145.99

Finding the Fourth Proportional to 8,855.07, 13,256.87 and 5,145.99

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Solution

The fourth proportional to 8,855.07, 13,256.87 and 5,145.99 is: 7,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.07 : 13,256.87 = 5,145.99 : x
  2. Step 2: Convert to fraction form
    8,855.07/13,256.87 = 5,145.99/x
  3. Step 3: Cross multiply
    8,855.07x = 13,256.87 × 5,145.99
  4. Step 4: Simplify right side
    8,855.07x = 68,219,694.72
  5. Step 5: Solve for x
    x = 68,219,694.72/8,855.07
  6. Step 6: Final answer
    x = 7,704.03

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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.