Home / 12,190.26-16,830.38-9,957.50

Finding the Fourth Proportional to 12,190.26, 16,830.38 and 9,957.50

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Solution

The fourth proportional to 12,190.26, 16,830.38 and 9,957.50 is: 13,747.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.26 : 16,830.38 = 9,957.50 : x
  2. Step 2: Convert to fraction form
    12,190.26/16,830.38 = 9,957.50/x
  3. Step 3: Cross multiply
    12,190.26x = 16,830.38 × 9,957.50
  4. Step 4: Simplify right side
    12,190.26x = 167,588,508.85
  5. Step 5: Solve for x
    x = 167,588,508.85/12,190.26
  6. Step 6: Final answer
    x = 13,747.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.