Home / 14,706.12-20,293.90-7,991.60

Finding the Fourth Proportional to 14,706.12, 20,293.90 and 7,991.60

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Solution

The fourth proportional to 14,706.12, 20,293.90 and 7,991.60 is: 11,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,706.12 : 20,293.90 = 7,991.60 : x
  2. Step 2: Convert to fraction form
    14,706.12/20,293.90 = 7,991.60/x
  3. Step 3: Cross multiply
    14,706.12x = 20,293.90 × 7,991.60
  4. Step 4: Simplify right side
    14,706.12x = 162,180,589.81
  5. Step 5: Solve for x
    x = 162,180,589.81/14,706.12
  6. Step 6: Final answer
    x = 11,028.11

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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.