Home / 15,747.99-21,732.22-8,674.41

Finding the Fourth Proportional to 15,747.99, 21,732.22 and 8,674.41

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Solution

The fourth proportional to 15,747.99, 21,732.22 and 8,674.41 is: 11,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.99 : 21,732.22 = 8,674.41 : x
  2. Step 2: Convert to fraction form
    15,747.99/21,732.22 = 8,674.41/x
  3. Step 3: Cross multiply
    15,747.99x = 21,732.22 × 8,674.41
  4. Step 4: Simplify right side
    15,747.99x = 188,514,186.49
  5. Step 5: Solve for x
    x = 188,514,186.49/15,747.99
  6. Step 6: Final answer
    x = 11,970.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.