Home / 10,427.60-15,641.40-4,190.60

Finding the Fourth Proportional to 10,427.60, 15,641.40 and 4,190.60

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Solution

The fourth proportional to 10,427.60, 15,641.40 and 4,190.60 is: 6,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.60 : 15,641.40 = 4,190.60 : x
  2. Step 2: Convert to fraction form
    10,427.60/15,641.40 = 4,190.60/x
  3. Step 3: Cross multiply
    10,427.60x = 15,641.40 × 4,190.60
  4. Step 4: Simplify right side
    10,427.60x = 65,546,850.84
  5. Step 5: Solve for x
    x = 65,546,850.84/10,427.60
  6. Step 6: Final answer
    x = 6,285.90

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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.