Home / 12,315.67-18,480.79-4,529.95

Finding the Fourth Proportional to 12,315.67, 18,480.79 and 4,529.95

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Solution

The fourth proportional to 12,315.67, 18,480.79 and 4,529.95 is: 6,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.67 : 18,480.79 = 4,529.95 : x
  2. Step 2: Convert to fraction form
    12,315.67/18,480.79 = 4,529.95/x
  3. Step 3: Cross multiply
    12,315.67x = 18,480.79 × 4,529.95
  4. Step 4: Simplify right side
    12,315.67x = 83,717,014.12
  5. Step 5: Solve for x
    x = 83,717,014.12/12,315.67
  6. Step 6: Final answer
    x = 6,797.60

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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.