Home / 6,478.32-9,709.26-4,137.60

Finding the Fourth Proportional to 6,478.32, 9,709.26 and 4,137.60

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Solution

The fourth proportional to 6,478.32, 9,709.26 and 4,137.60 is: 6,201.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.32 : 9,709.26 = 4,137.60 : x
  2. Step 2: Convert to fraction form
    6,478.32/9,709.26 = 4,137.60/x
  3. Step 3: Cross multiply
    6,478.32x = 9,709.26 × 4,137.60
  4. Step 4: Simplify right side
    6,478.32x = 40,173,034.18
  5. Step 5: Solve for x
    x = 40,173,034.18/6,478.32
  6. Step 6: Final answer
    x = 6,201.15

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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.