Home / 11,968.65-16,516.35-6,663.20

Finding the Fourth Proportional to 11,968.65, 16,516.35 and 6,663.20

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Solution

The fourth proportional to 11,968.65, 16,516.35 and 6,663.20 is: 9,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.65 : 16,516.35 = 6,663.20 : x
  2. Step 2: Convert to fraction form
    11,968.65/16,516.35 = 6,663.20/x
  3. Step 3: Cross multiply
    11,968.65x = 16,516.35 × 6,663.20
  4. Step 4: Simplify right side
    11,968.65x = 110,051,660.74
  5. Step 5: Solve for x
    x = 110,051,660.74/11,968.65
  6. Step 6: Final answer
    x = 9,194.99

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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.