Home / 8,678.88-13,019.07-2,438.94

Finding the Fourth Proportional to 8,678.88, 13,019.07 and 2,438.94

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Solution

The fourth proportional to 8,678.88, 13,019.07 and 2,438.94 is: 3,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.88 : 13,019.07 = 2,438.94 : x
  2. Step 2: Convert to fraction form
    8,678.88/13,019.07 = 2,438.94/x
  3. Step 3: Cross multiply
    8,678.88x = 13,019.07 × 2,438.94
  4. Step 4: Simplify right side
    8,678.88x = 31,752,788.55
  5. Step 5: Solve for x
    x = 31,752,788.55/8,678.88
  6. Step 6: Final answer
    x = 3,658.63

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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.