Home / 10,197.90-14,072.40-5,722.38

Finding the Fourth Proportional to 10,197.90, 14,072.40 and 5,722.38

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Solution

The fourth proportional to 10,197.90, 14,072.40 and 5,722.38 is: 7,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,197.90 : 14,072.40 = 5,722.38 : x
  2. Step 2: Convert to fraction form
    10,197.90/14,072.40 = 5,722.38/x
  3. Step 3: Cross multiply
    10,197.90x = 14,072.40 × 5,722.38
  4. Step 4: Simplify right side
    10,197.90x = 80,527,620.31
  5. Step 5: Solve for x
    x = 80,527,620.31/10,197.90
  6. Step 6: Final answer
    x = 7,896.49

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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.