Home / 14,140.12-19,513.89-8,475.79

Finding the Fourth Proportional to 14,140.12, 19,513.89 and 8,475.79

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Solution

The fourth proportional to 14,140.12, 19,513.89 and 8,475.79 is: 11,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.12 : 19,513.89 = 8,475.79 : x
  2. Step 2: Convert to fraction form
    14,140.12/19,513.89 = 8,475.79/x
  3. Step 3: Cross multiply
    14,140.12x = 19,513.89 × 8,475.79
  4. Step 4: Simplify right side
    14,140.12x = 165,395,584.94
  5. Step 5: Solve for x
    x = 165,395,584.94/14,140.12
  6. Step 6: Final answer
    x = 11,696.90

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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.