Home / 19,436.37-26,825.97-12,638.81

Finding the Fourth Proportional to 19,436.37, 26,825.97 and 12,638.81

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Solution

The fourth proportional to 19,436.37, 26,825.97 and 12,638.81 is: 17,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,436.37 : 26,825.97 = 12,638.81 : x
  2. Step 2: Convert to fraction form
    19,436.37/26,825.97 = 12,638.81/x
  3. Step 3: Cross multiply
    19,436.37x = 26,825.97 × 12,638.81
  4. Step 4: Simplify right side
    19,436.37x = 339,048,203.77
  5. Step 5: Solve for x
    x = 339,048,203.77/19,436.37
  6. Step 6: Final answer
    x = 17,444.01

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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.