Home / 8,429.40-12,634.26-6,342.70

Finding the Fourth Proportional to 8,429.40, 12,634.26 and 6,342.70

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Solution

The fourth proportional to 8,429.40, 12,634.26 and 6,342.70 is: 9,506.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.40 : 12,634.26 = 6,342.70 : x
  2. Step 2: Convert to fraction form
    8,429.40/12,634.26 = 6,342.70/x
  3. Step 3: Cross multiply
    8,429.40x = 12,634.26 × 6,342.70
  4. Step 4: Simplify right side
    8,429.40x = 80,135,320.90
  5. Step 5: Solve for x
    x = 80,135,320.90/8,429.40
  6. Step 6: Final answer
    x = 9,506.65

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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.