Home / 13,898.53-19,179.60-7,930.09

Finding the Fourth Proportional to 13,898.53, 19,179.60 and 7,930.09

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Solution

The fourth proportional to 13,898.53, 19,179.60 and 7,930.09 is: 10,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.53 : 19,179.60 = 7,930.09 : x
  2. Step 2: Convert to fraction form
    13,898.53/19,179.60 = 7,930.09/x
  3. Step 3: Cross multiply
    13,898.53x = 19,179.60 × 7,930.09
  4. Step 4: Simplify right side
    13,898.53x = 152,095,954.16
  5. Step 5: Solve for x
    x = 152,095,954.16/13,898.53
  6. Step 6: Final answer
    x = 10,943.31

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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.