Home / 12,055.42-18,080.70-3,290.95

Finding the Fourth Proportional to 12,055.42, 18,080.70 and 3,290.95

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Solution

The fourth proportional to 12,055.42, 18,080.70 and 3,290.95 is: 4,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.42 : 18,080.70 = 3,290.95 : x
  2. Step 2: Convert to fraction form
    12,055.42/18,080.70 = 3,290.95/x
  3. Step 3: Cross multiply
    12,055.42x = 18,080.70 × 3,290.95
  4. Step 4: Simplify right side
    12,055.42x = 59,502,679.67
  5. Step 5: Solve for x
    x = 59,502,679.67/12,055.42
  6. Step 6: Final answer
    x = 4,935.76

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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.