Home / 16,862.41-25,273.91-12,689

Finding the Fourth Proportional to 16,862.41, 25,273.91 and 12,689

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Solution

The fourth proportional to 16,862.41, 25,273.91 and 12,689 is: 19,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.41 : 25,273.91 = 12,689 : x
  2. Step 2: Convert to fraction form
    16,862.41/25,273.91 = 12,689/x
  3. Step 3: Cross multiply
    16,862.41x = 25,273.91 × 12,689
  4. Step 4: Simplify right side
    16,862.41x = 320,700,643.99
  5. Step 5: Solve for x
    x = 320,700,643.99/16,862.41
  6. Step 6: Final answer
    x = 19,018.67

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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.