Home / 16,869.40-25,328.40-11,960.80

Finding the Fourth Proportional to 16,869.40, 25,328.40 and 11,960.80

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Solution

The fourth proportional to 16,869.40, 25,328.40 and 11,960.80 is: 17,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.40 : 25,328.40 = 11,960.80 : x
  2. Step 2: Convert to fraction form
    16,869.40/25,328.40 = 11,960.80/x
  3. Step 3: Cross multiply
    16,869.40x = 25,328.40 × 11,960.80
  4. Step 4: Simplify right side
    16,869.40x = 302,947,926.72
  5. Step 5: Solve for x
    x = 302,947,926.72/16,869.40
  6. Step 6: Final answer
    x = 17,958.43

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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.