Home / 10,120.94-13,968.11-5,929.19

Finding the Fourth Proportional to 10,120.94, 13,968.11 and 5,929.19

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Solution

The fourth proportional to 10,120.94, 13,968.11 and 5,929.19 is: 8,182.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.94 : 13,968.11 = 5,929.19 : x
  2. Step 2: Convert to fraction form
    10,120.94/13,968.11 = 5,929.19/x
  3. Step 3: Cross multiply
    10,120.94x = 13,968.11 × 5,929.19
  4. Step 4: Simplify right side
    10,120.94x = 82,819,558.03
  5. Step 5: Solve for x
    x = 82,819,558.03/10,120.94
  6. Step 6: Final answer
    x = 8,182.99

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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.