Home / 16,860.30-25,270.74-12,686.94

Finding the Fourth Proportional to 16,860.30, 25,270.74 and 12,686.94

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Solution

The fourth proportional to 16,860.30, 25,270.74 and 12,686.94 is: 19,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,860.30 : 25,270.74 = 12,686.94 : x
  2. Step 2: Convert to fraction form
    16,860.30/25,270.74 = 12,686.94/x
  3. Step 3: Cross multiply
    16,860.30x = 25,270.74 × 12,686.94
  4. Step 4: Simplify right side
    16,860.30x = 320,608,362.14
  5. Step 5: Solve for x
    x = 320,608,362.14/16,860.30
  6. Step 6: Final answer
    x = 19,015.58

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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.