Home / 19,078.94-26,328.34-11,121.50

Finding the Fourth Proportional to 19,078.94, 26,328.34 and 11,121.50

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Solution

The fourth proportional to 19,078.94, 26,328.34 and 11,121.50 is: 15,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.94 : 26,328.34 = 11,121.50 : x
  2. Step 2: Convert to fraction form
    19,078.94/26,328.34 = 11,121.50/x
  3. Step 3: Cross multiply
    19,078.94x = 26,328.34 × 11,121.50
  4. Step 4: Simplify right side
    19,078.94x = 292,810,713.03
  5. Step 5: Solve for x
    x = 292,810,713.03/19,078.94
  6. Step 6: Final answer
    x = 15,347.32

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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.