Home / 12,245.31-16,898.60-7,209.75

Finding the Fourth Proportional to 12,245.31, 16,898.60 and 7,209.75

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Solution

The fourth proportional to 12,245.31, 16,898.60 and 7,209.75 is: 9,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.31 : 16,898.60 = 7,209.75 : x
  2. Step 2: Convert to fraction form
    12,245.31/16,898.60 = 7,209.75/x
  3. Step 3: Cross multiply
    12,245.31x = 16,898.60 × 7,209.75
  4. Step 4: Simplify right side
    12,245.31x = 121,834,645.30
  5. Step 5: Solve for x
    x = 121,834,645.30/12,245.31
  6. Step 6: Final answer
    x = 9,949.49

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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.