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Finding the Fourth Proportional to 8,402.88, 12,601.08 and 4,022.40

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Solution

The fourth proportional to 8,402.88, 12,601.08 and 4,022.40 is: 6,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.88 : 12,601.08 = 4,022.40 : x
  2. Step 2: Convert to fraction form
    8,402.88/12,601.08 = 4,022.40/x
  3. Step 3: Cross multiply
    8,402.88x = 12,601.08 × 4,022.40
  4. Step 4: Simplify right side
    8,402.88x = 50,686,584.19
  5. Step 5: Solve for x
    x = 50,686,584.19/8,402.88
  6. Step 6: Final answer
    x = 6,032.05

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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.