Home / 13,789.49-19,033.57-8,126.07

Finding the Fourth Proportional to 13,789.49, 19,033.57 and 8,126.07

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Solution

The fourth proportional to 13,789.49, 19,033.57 and 8,126.07 is: 11,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.49 : 19,033.57 = 8,126.07 : x
  2. Step 2: Convert to fraction form
    13,789.49/19,033.57 = 8,126.07/x
  3. Step 3: Cross multiply
    13,789.49x = 19,033.57 × 8,126.07
  4. Step 4: Simplify right side
    13,789.49x = 154,668,122.17
  5. Step 5: Solve for x
    x = 154,668,122.17/13,789.49
  6. Step 6: Final answer
    x = 11,216.38

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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.