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Finding the Fourth Proportional to 8,989.44, 13,484.12 and 2,415.08

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Solution

The fourth proportional to 8,989.44, 13,484.12 and 2,415.08 is: 3,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.44 : 13,484.12 = 2,415.08 : x
  2. Step 2: Convert to fraction form
    8,989.44/13,484.12 = 2,415.08/x
  3. Step 3: Cross multiply
    8,989.44x = 13,484.12 × 2,415.08
  4. Step 4: Simplify right side
    8,989.44x = 32,565,149.03
  5. Step 5: Solve for x
    x = 32,565,149.03/8,989.44
  6. Step 6: Final answer
    x = 3,622.60

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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.