Home / 8,418.30-12,622.41-3,485.04

Finding the Fourth Proportional to 8,418.30, 12,622.41 and 3,485.04

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Solution

The fourth proportional to 8,418.30, 12,622.41 and 3,485.04 is: 5,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.30 : 12,622.41 = 3,485.04 : x
  2. Step 2: Convert to fraction form
    8,418.30/12,622.41 = 3,485.04/x
  3. Step 3: Cross multiply
    8,418.30x = 12,622.41 × 3,485.04
  4. Step 4: Simplify right side
    8,418.30x = 43,989,603.75
  5. Step 5: Solve for x
    x = 43,989,603.75/8,418.30
  6. Step 6: Final answer
    x = 5,225.47

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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.