Home / 13,868.49-19,137.45-7,898.97

Finding the Fourth Proportional to 13,868.49, 19,137.45 and 7,898.97

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Solution

The fourth proportional to 13,868.49, 19,137.45 and 7,898.97 is: 10,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.49 : 19,137.45 = 7,898.97 : x
  2. Step 2: Convert to fraction form
    13,868.49/19,137.45 = 7,898.97/x
  3. Step 3: Cross multiply
    13,868.49x = 19,137.45 × 7,898.97
  4. Step 4: Simplify right side
    13,868.49x = 151,166,143.43
  5. Step 5: Solve for x
    x = 151,166,143.43/13,868.49
  6. Step 6: Final answer
    x = 10,899.97

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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.