Home / 17,170.40-25,762.80-12,825.56

Finding the Fourth Proportional to 17,170.40, 25,762.80 and 12,825.56

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Solution

The fourth proportional to 17,170.40, 25,762.80 and 12,825.56 is: 19,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,170.40 : 25,762.80 = 12,825.56 : x
  2. Step 2: Convert to fraction form
    17,170.40/25,762.80 = 12,825.56/x
  3. Step 3: Cross multiply
    17,170.40x = 25,762.80 × 12,825.56
  4. Step 4: Simplify right side
    17,170.40x = 330,422,337.17
  5. Step 5: Solve for x
    x = 330,422,337.17/17,170.40
  6. Step 6: Final answer
    x = 19,243.72

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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.