Home / 6,147.90-8,486.37-4,659.12

Finding the Fourth Proportional to 6,147.90, 8,486.37 and 4,659.12

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Solution

The fourth proportional to 6,147.90, 8,486.37 and 4,659.12 is: 6,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.90 : 8,486.37 = 4,659.12 : x
  2. Step 2: Convert to fraction form
    6,147.90/8,486.37 = 4,659.12/x
  3. Step 3: Cross multiply
    6,147.90x = 8,486.37 × 4,659.12
  4. Step 4: Simplify right side
    6,147.90x = 39,539,016.19
  5. Step 5: Solve for x
    x = 39,539,016.19/6,147.90
  6. Step 6: Final answer
    x = 6,431.30

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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.