Home / 11,117.20-16,670.40-6,181.60

Finding the Fourth Proportional to 11,117.20, 16,670.40 and 6,181.60

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Solution

The fourth proportional to 11,117.20, 16,670.40 and 6,181.60 is: 9,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.20 : 16,670.40 = 6,181.60 : x
  2. Step 2: Convert to fraction form
    11,117.20/16,670.40 = 6,181.60/x
  3. Step 3: Cross multiply
    11,117.20x = 16,670.40 × 6,181.60
  4. Step 4: Simplify right side
    11,117.20x = 103,049,744.64
  5. Step 5: Solve for x
    x = 103,049,744.64/11,117.20
  6. Step 6: Final answer
    x = 9,269.40

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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.