Home / 6,605.40-9,893.70-4,272.60

Finding the Fourth Proportional to 6,605.40, 9,893.70 and 4,272.60

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Solution

The fourth proportional to 6,605.40, 9,893.70 and 4,272.60 is: 6,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.40 : 9,893.70 = 4,272.60 : x
  2. Step 2: Convert to fraction form
    6,605.40/9,893.70 = 4,272.60/x
  3. Step 3: Cross multiply
    6,605.40x = 9,893.70 × 4,272.60
  4. Step 4: Simplify right side
    6,605.40x = 42,271,822.62
  5. Step 5: Solve for x
    x = 42,271,822.62/6,605.40
  6. Step 6: Final answer
    x = 6,399.59

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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.