Home / 9,780.21-14,672.48-2,855.25

Finding the Fourth Proportional to 9,780.21, 14,672.48 and 2,855.25

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Solution

The fourth proportional to 9,780.21, 14,672.48 and 2,855.25 is: 4,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.21 : 14,672.48 = 2,855.25 : x
  2. Step 2: Convert to fraction form
    9,780.21/14,672.48 = 2,855.25/x
  3. Step 3: Cross multiply
    9,780.21x = 14,672.48 × 2,855.25
  4. Step 4: Simplify right side
    9,780.21x = 41,893,584.24
  5. Step 5: Solve for x
    x = 41,893,584.24/9,780.21
  6. Step 6: Final answer
    x = 4,283.51

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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.