Home / 8,429.40-12,646.80-4,265.73

Finding the Fourth Proportional to 8,429.40, 12,646.80 and 4,265.73

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Solution

The fourth proportional to 8,429.40, 12,646.80 and 4,265.73 is: 6,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.40 : 12,646.80 = 4,265.73 : x
  2. Step 2: Convert to fraction form
    8,429.40/12,646.80 = 4,265.73/x
  3. Step 3: Cross multiply
    8,429.40x = 12,646.80 × 4,265.73
  4. Step 4: Simplify right side
    8,429.40x = 53,947,834.16
  5. Step 5: Solve for x
    x = 53,947,834.16/8,429.40
  6. Step 6: Final answer
    x = 6,399.96

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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.