Home / 12,771.96-17,625.03-7,106.60

Finding the Fourth Proportional to 12,771.96, 17,625.03 and 7,106.60

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Solution

The fourth proportional to 12,771.96, 17,625.03 and 7,106.60 is: 9,806.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.96 : 17,625.03 = 7,106.60 : x
  2. Step 2: Convert to fraction form
    12,771.96/17,625.03 = 7,106.60/x
  3. Step 3: Cross multiply
    12,771.96x = 17,625.03 × 7,106.60
  4. Step 4: Simplify right side
    12,771.96x = 125,254,038.20
  5. Step 5: Solve for x
    x = 125,254,038.20/12,771.96
  6. Step 6: Final answer
    x = 9,806.96

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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.