Home / 14,988.14-20,683.31-8,181.94

Finding the Fourth Proportional to 14,988.14, 20,683.31 and 8,181.94

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Solution

The fourth proportional to 14,988.14, 20,683.31 and 8,181.94 is: 11,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.14 : 20,683.31 = 8,181.94 : x
  2. Step 2: Convert to fraction form
    14,988.14/20,683.31 = 8,181.94/x
  3. Step 3: Cross multiply
    14,988.14x = 20,683.31 × 8,181.94
  4. Step 4: Simplify right side
    14,988.14x = 169,229,601.42
  5. Step 5: Solve for x
    x = 169,229,601.42/14,988.14
  6. Step 6: Final answer
    x = 11,290.90

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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.