Home / 17,125.80-25,638.30-12,762.60

Finding the Fourth Proportional to 17,125.80, 25,638.30 and 12,762.60

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Solution

The fourth proportional to 17,125.80, 25,638.30 and 12,762.60 is: 19,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.80 : 25,638.30 = 12,762.60 : x
  2. Step 2: Convert to fraction form
    17,125.80/25,638.30 = 12,762.60/x
  3. Step 3: Cross multiply
    17,125.80x = 25,638.30 × 12,762.60
  4. Step 4: Simplify right side
    17,125.80x = 327,211,367.58
  5. Step 5: Solve for x
    x = 327,211,367.58/17,125.80
  6. Step 6: Final answer
    x = 19,106.34

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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.