Home / 9,420.21-14,128.38-8,951.85

Finding the Fourth Proportional to 9,420.21, 14,128.38 and 8,951.85

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Solution

The fourth proportional to 9,420.21, 14,128.38 and 8,951.85 is: 13,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.21 : 14,128.38 = 8,951.85 : x
  2. Step 2: Convert to fraction form
    9,420.21/14,128.38 = 8,951.85/x
  3. Step 3: Cross multiply
    9,420.21x = 14,128.38 × 8,951.85
  4. Step 4: Simplify right side
    9,420.21x = 126,475,138.50
  5. Step 5: Solve for x
    x = 126,475,138.50/9,420.21
  6. Step 6: Final answer
    x = 13,425.94

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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.