Home / 8,785.16-13,173.68-2,940.20

Finding the Fourth Proportional to 8,785.16, 13,173.68 and 2,940.20

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Solution

The fourth proportional to 8,785.16, 13,173.68 and 2,940.20 is: 4,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.16 : 13,173.68 = 2,940.20 : x
  2. Step 2: Convert to fraction form
    8,785.16/13,173.68 = 2,940.20/x
  3. Step 3: Cross multiply
    8,785.16x = 13,173.68 × 2,940.20
  4. Step 4: Simplify right side
    8,785.16x = 38,733,253.94
  5. Step 5: Solve for x
    x = 38,733,253.94/8,785.16
  6. Step 6: Final answer
    x = 4,408.94

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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.