Home / 15,051.38-20,770.69-8,336.99

Finding the Fourth Proportional to 15,051.38, 20,770.69 and 8,336.99

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Solution

The fourth proportional to 15,051.38, 20,770.69 and 8,336.99 is: 11,504.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.38 : 20,770.69 = 8,336.99 : x
  2. Step 2: Convert to fraction form
    15,051.38/20,770.69 = 8,336.99/x
  3. Step 3: Cross multiply
    15,051.38x = 20,770.69 × 8,336.99
  4. Step 4: Simplify right side
    15,051.38x = 173,164,889.28
  5. Step 5: Solve for x
    x = 173,164,889.28/15,051.38
  6. Step 6: Final answer
    x = 11,504.92

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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.