Home / 15,722.12-21,671.34-11,932.94

Finding the Fourth Proportional to 15,722.12, 21,671.34 and 11,932.94

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Solution

The fourth proportional to 15,722.12, 21,671.34 and 11,932.94 is: 16,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.12 : 21,671.34 = 11,932.94 : x
  2. Step 2: Convert to fraction form
    15,722.12/21,671.34 = 11,932.94/x
  3. Step 3: Cross multiply
    15,722.12x = 21,671.34 × 11,932.94
  4. Step 4: Simplify right side
    15,722.12x = 258,602,799.94
  5. Step 5: Solve for x
    x = 258,602,799.94/15,722.12
  6. Step 6: Final answer
    x = 16,448.34

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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.