Home / 7,445.08-11,168.70-6,142.60

Finding the Fourth Proportional to 7,445.08, 11,168.70 and 6,142.60

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Solution

The fourth proportional to 7,445.08, 11,168.70 and 6,142.60 is: 9,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.08 : 11,168.70 = 6,142.60 : x
  2. Step 2: Convert to fraction form
    7,445.08/11,168.70 = 6,142.60/x
  3. Step 3: Cross multiply
    7,445.08x = 11,168.70 × 6,142.60
  4. Step 4: Simplify right side
    7,445.08x = 68,604,856.62
  5. Step 5: Solve for x
    x = 68,604,856.62/7,445.08
  6. Step 6: Final answer
    x = 9,214.79

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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.