Home / 12,276.26-18,415.05-3,955.67

Finding the Fourth Proportional to 12,276.26, 18,415.05 and 3,955.67

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Solution

The fourth proportional to 12,276.26, 18,415.05 and 3,955.67 is: 5,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.26 : 18,415.05 = 3,955.67 : x
  2. Step 2: Convert to fraction form
    12,276.26/18,415.05 = 3,955.67/x
  3. Step 3: Cross multiply
    12,276.26x = 18,415.05 × 3,955.67
  4. Step 4: Simplify right side
    12,276.26x = 72,843,860.83
  5. Step 5: Solve for x
    x = 72,843,860.83/12,276.26
  6. Step 6: Final answer
    x = 5,933.72

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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.