Home / 12,708.81-19,065.61-4,813.69

Finding the Fourth Proportional to 12,708.81, 19,065.61 and 4,813.69

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Solution

The fourth proportional to 12,708.81, 19,065.61 and 4,813.69 is: 7,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.81 : 19,065.61 = 4,813.69 : x
  2. Step 2: Convert to fraction form
    12,708.81/19,065.61 = 4,813.69/x
  3. Step 3: Cross multiply
    12,708.81x = 19,065.61 × 4,813.69
  4. Step 4: Simplify right side
    12,708.81x = 91,775,816.80
  5. Step 5: Solve for x
    x = 91,775,816.80/12,708.81
  6. Step 6: Final answer
    x = 7,221.44

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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.