Home / 16,871.28-23,283.68-12,415.48

Finding the Fourth Proportional to 16,871.28, 23,283.68 and 12,415.48

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Solution

The fourth proportional to 16,871.28, 23,283.68 and 12,415.48 is: 17,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.28 : 23,283.68 = 12,415.48 : x
  2. Step 2: Convert to fraction form
    16,871.28/23,283.68 = 12,415.48/x
  3. Step 3: Cross multiply
    16,871.28x = 23,283.68 × 12,415.48
  4. Step 4: Simplify right side
    16,871.28x = 289,078,063.37
  5. Step 5: Solve for x
    x = 289,078,063.37/16,871.28
  6. Step 6: Final answer
    x = 17,134.33

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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.