Home / 9,334.08-12,879.72-5,142.60

Finding the Fourth Proportional to 9,334.08, 12,879.72 and 5,142.60

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Solution

The fourth proportional to 9,334.08, 12,879.72 and 5,142.60 is: 7,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.08 : 12,879.72 = 5,142.60 : x
  2. Step 2: Convert to fraction form
    9,334.08/12,879.72 = 5,142.60/x
  3. Step 3: Cross multiply
    9,334.08x = 12,879.72 × 5,142.60
  4. Step 4: Simplify right side
    9,334.08x = 66,235,248.07
  5. Step 5: Solve for x
    x = 66,235,248.07/9,334.08
  6. Step 6: Final answer
    x = 7,096.07

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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.