Home / 9,119.20-13,657.20-6,181.60

Finding the Fourth Proportional to 9,119.20, 13,657.20 and 6,181.60

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Solution

The fourth proportional to 9,119.20, 13,657.20 and 6,181.60 is: 9,257.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.20 : 13,657.20 = 6,181.60 : x
  2. Step 2: Convert to fraction form
    9,119.20/13,657.20 = 6,181.60/x
  3. Step 3: Cross multiply
    9,119.20x = 13,657.20 × 6,181.60
  4. Step 4: Simplify right side
    9,119.20x = 84,423,347.52
  5. Step 5: Solve for x
    x = 84,423,347.52/9,119.20
  6. Step 6: Final answer
    x = 9,257.76

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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.