Home / 12,697.39-19,058.37-6,128.20

Finding the Fourth Proportional to 12,697.39, 19,058.37 and 6,128.20

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Solution

The fourth proportional to 12,697.39, 19,058.37 and 6,128.20 is: 9,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.39 : 19,058.37 = 6,128.20 : x
  2. Step 2: Convert to fraction form
    12,697.39/19,058.37 = 6,128.20/x
  3. Step 3: Cross multiply
    12,697.39x = 19,058.37 × 6,128.20
  4. Step 4: Simplify right side
    12,697.39x = 116,793,503.03
  5. Step 5: Solve for x
    x = 116,793,503.03/12,697.39
  6. Step 6: Final answer
    x = 9,198.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.