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Finding the Fourth Proportional to 8,630.01, 12,945.56 and 3,435.75

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Solution

The fourth proportional to 8,630.01, 12,945.56 and 3,435.75 is: 5,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.01 : 12,945.56 = 3,435.75 : x
  2. Step 2: Convert to fraction form
    8,630.01/12,945.56 = 3,435.75/x
  3. Step 3: Cross multiply
    8,630.01x = 12,945.56 × 3,435.75
  4. Step 4: Simplify right side
    8,630.01x = 44,477,690.59
  5. Step 5: Solve for x
    x = 44,477,690.59/8,630.01
  6. Step 6: Final answer
    x = 5,153.84

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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.