Home / 6,520.60-9,000.56-3,968.32

Finding the Fourth Proportional to 6,520.60, 9,000.56 and 3,968.32

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Solution

The fourth proportional to 6,520.60, 9,000.56 and 3,968.32 is: 5,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.60 : 9,000.56 = 3,968.32 : x
  2. Step 2: Convert to fraction form
    6,520.60/9,000.56 = 3,968.32/x
  3. Step 3: Cross multiply
    6,520.60x = 9,000.56 × 3,968.32
  4. Step 4: Simplify right side
    6,520.60x = 35,717,102.26
  5. Step 5: Solve for x
    x = 35,717,102.26/6,520.60
  6. Step 6: Final answer
    x = 5,477.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.