Home / 18,764.56-25,871.60-13,724.72

Finding the Fourth Proportional to 18,764.56, 25,871.60 and 13,724.72

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Solution

The fourth proportional to 18,764.56, 25,871.60 and 13,724.72 is: 18,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.56 : 25,871.60 = 13,724.72 : x
  2. Step 2: Convert to fraction form
    18,764.56/25,871.60 = 13,724.72/x
  3. Step 3: Cross multiply
    18,764.56x = 25,871.60 × 13,724.72
  4. Step 4: Simplify right side
    18,764.56x = 355,080,465.95
  5. Step 5: Solve for x
    x = 355,080,465.95/18,764.56
  6. Step 6: Final answer
    x = 18,922.93

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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.