Home / 13,853.03-19,078.34-12,963.65

Finding the Fourth Proportional to 13,853.03, 19,078.34 and 12,963.65

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Solution

The fourth proportional to 13,853.03, 19,078.34 and 12,963.65 is: 17,853.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.03 : 19,078.34 = 12,963.65 : x
  2. Step 2: Convert to fraction form
    13,853.03/19,078.34 = 12,963.65/x
  3. Step 3: Cross multiply
    13,853.03x = 19,078.34 × 12,963.65
  4. Step 4: Simplify right side
    13,853.03x = 247,324,762.13
  5. Step 5: Solve for x
    x = 247,324,762.13/13,853.03
  6. Step 6: Final answer
    x = 17,853.48

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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.