Home / 7,342.90-11,002.20-6,103.60

Finding the Fourth Proportional to 7,342.90, 11,002.20 and 6,103.60

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Solution

The fourth proportional to 7,342.90, 11,002.20 and 6,103.60 is: 9,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.90 : 11,002.20 = 6,103.60 : x
  2. Step 2: Convert to fraction form
    7,342.90/11,002.20 = 6,103.60/x
  3. Step 3: Cross multiply
    7,342.90x = 11,002.20 × 6,103.60
  4. Step 4: Simplify right side
    7,342.90x = 67,153,027.92
  5. Step 5: Solve for x
    x = 67,153,027.92/7,342.90
  6. Step 6: Final answer
    x = 9,145.30

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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.