Home / 9,739.20-14,608.80-4,191.60

Finding the Fourth Proportional to 9,739.20, 14,608.80 and 4,191.60

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Solution

The fourth proportional to 9,739.20, 14,608.80 and 4,191.60 is: 6,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.20 : 14,608.80 = 4,191.60 : x
  2. Step 2: Convert to fraction form
    9,739.20/14,608.80 = 4,191.60/x
  3. Step 3: Cross multiply
    9,739.20x = 14,608.80 × 4,191.60
  4. Step 4: Simplify right side
    9,739.20x = 61,234,246.08
  5. Step 5: Solve for x
    x = 61,234,246.08/9,739.20
  6. Step 6: Final answer
    x = 6,287.40

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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.