Home / 19,485.18-26,871.62-12,768.37

Finding the Fourth Proportional to 19,485.18, 26,871.62 and 12,768.37

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Solution

The fourth proportional to 19,485.18, 26,871.62 and 12,768.37 is: 17,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.18 : 26,871.62 = 12,768.37 : x
  2. Step 2: Convert to fraction form
    19,485.18/26,871.62 = 12,768.37/x
  3. Step 3: Cross multiply
    19,485.18x = 26,871.62 × 12,768.37
  4. Step 4: Simplify right side
    19,485.18x = 343,106,655.64
  5. Step 5: Solve for x
    x = 343,106,655.64/19,485.18
  6. Step 6: Final answer
    x = 17,608.60

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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.