Home / 14,198.07-21,315.30-8,869.56

Finding the Fourth Proportional to 14,198.07, 21,315.30 and 8,869.56

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Solution

The fourth proportional to 14,198.07, 21,315.30 and 8,869.56 is: 13,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,198.07 : 21,315.30 = 8,869.56 : x
  2. Step 2: Convert to fraction form
    14,198.07/21,315.30 = 8,869.56/x
  3. Step 3: Cross multiply
    14,198.07x = 21,315.30 × 8,869.56
  4. Step 4: Simplify right side
    14,198.07x = 189,057,332.27
  5. Step 5: Solve for x
    x = 189,057,332.27/14,198.07
  6. Step 6: Final answer
    x = 13,315.71

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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.