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Finding the Fourth Proportional to 8,987.89, 13,483.04 and 8,441.14

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Solution

The fourth proportional to 8,987.89, 13,483.04 and 8,441.14 is: 12,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.89 : 13,483.04 = 8,441.14 : x
  2. Step 2: Convert to fraction form
    8,987.89/13,483.04 = 8,441.14/x
  3. Step 3: Cross multiply
    8,987.89x = 13,483.04 × 8,441.14
  4. Step 4: Simplify right side
    8,987.89x = 113,812,181.95
  5. Step 5: Solve for x
    x = 113,812,181.95/8,987.89
  6. Step 6: Final answer
    x = 12,662.84

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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.