Home / 12,392.88-18,586.80-3,628.32

Finding the Fourth Proportional to 12,392.88, 18,586.80 and 3,628.32

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Solution

The fourth proportional to 12,392.88, 18,586.80 and 3,628.32 is: 5,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.88 : 18,586.80 = 3,628.32 : x
  2. Step 2: Convert to fraction form
    12,392.88/18,586.80 = 3,628.32/x
  3. Step 3: Cross multiply
    12,392.88x = 18,586.80 × 3,628.32
  4. Step 4: Simplify right side
    12,392.88x = 67,438,858.18
  5. Step 5: Solve for x
    x = 67,438,858.18/12,392.88
  6. Step 6: Final answer
    x = 5,441.74

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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.