Home / 16,818.80-25,199.40-10,972.40

Finding the Fourth Proportional to 16,818.80, 25,199.40 and 10,972.40

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Solution

The fourth proportional to 16,818.80, 25,199.40 and 10,972.40 is: 16,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818.80 : 25,199.40 = 10,972.40 : x
  2. Step 2: Convert to fraction form
    16,818.80/25,199.40 = 10,972.40/x
  3. Step 3: Cross multiply
    16,818.80x = 25,199.40 × 10,972.40
  4. Step 4: Simplify right side
    16,818.80x = 276,497,896.56
  5. Step 5: Solve for x
    x = 276,497,896.56/16,818.80
  6. Step 6: Final answer
    x = 16,439.81

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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.