Home / 12,638.58-17,440.26-6,973.54

Finding the Fourth Proportional to 12,638.58, 17,440.26 and 6,973.54

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Solution

The fourth proportional to 12,638.58, 17,440.26 and 6,973.54 is: 9,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.58 : 17,440.26 = 6,973.54 : x
  2. Step 2: Convert to fraction form
    12,638.58/17,440.26 = 6,973.54/x
  3. Step 3: Cross multiply
    12,638.58x = 17,440.26 × 6,973.54
  4. Step 4: Simplify right side
    12,638.58x = 121,620,346.37
  5. Step 5: Solve for x
    x = 121,620,346.37/12,638.58
  6. Step 6: Final answer
    x = 9,622.94

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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.