Home / 8,431.23-12,654.61-4,274.15

Finding the Fourth Proportional to 8,431.23, 12,654.61 and 4,274.15

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Solution

The fourth proportional to 8,431.23, 12,654.61 and 4,274.15 is: 6,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.23 : 12,654.61 = 4,274.15 : x
  2. Step 2: Convert to fraction form
    8,431.23/12,654.61 = 4,274.15/x
  3. Step 3: Cross multiply
    8,431.23x = 12,654.61 × 4,274.15
  4. Step 4: Simplify right side
    8,431.23x = 54,087,722.60
  5. Step 5: Solve for x
    x = 54,087,722.60/8,431.23
  6. Step 6: Final answer
    x = 6,415.16

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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.