Home / 8,434.80-12,659.94-4,277.70

Finding the Fourth Proportional to 8,434.80, 12,659.94 and 4,277.70

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Solution

The fourth proportional to 8,434.80, 12,659.94 and 4,277.70 is: 6,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.80 : 12,659.94 = 4,277.70 : x
  2. Step 2: Convert to fraction form
    8,434.80/12,659.94 = 4,277.70/x
  3. Step 3: Cross multiply
    8,434.80x = 12,659.94 × 4,277.70
  4. Step 4: Simplify right side
    8,434.80x = 54,155,425.34
  5. Step 5: Solve for x
    x = 54,155,425.34/8,434.80
  6. Step 6: Final answer
    x = 6,420.48

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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.