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Finding the Fourth Proportional to 8,984.62, 13,488.80 and 7,676.75

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Solution

The fourth proportional to 8,984.62, 13,488.80 and 7,676.75 is: 11,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.62 : 13,488.80 = 7,676.75 : x
  2. Step 2: Convert to fraction form
    8,984.62/13,488.80 = 7,676.75/x
  3. Step 3: Cross multiply
    8,984.62x = 13,488.80 × 7,676.75
  4. Step 4: Simplify right side
    8,984.62x = 103,550,145.40
  5. Step 5: Solve for x
    x = 103,550,145.40/8,984.62
  6. Step 6: Final answer
    x = 11,525.26

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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.