Home / 16,435.14-22,699.35-11,978.79

Finding the Fourth Proportional to 16,435.14, 22,699.35 and 11,978.79

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Solution

The fourth proportional to 16,435.14, 22,699.35 and 11,978.79 is: 16,544.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,435.14 : 22,699.35 = 11,978.79 : x
  2. Step 2: Convert to fraction form
    16,435.14/22,699.35 = 11,978.79/x
  3. Step 3: Cross multiply
    16,435.14x = 22,699.35 × 11,978.79
  4. Step 4: Simplify right side
    16,435.14x = 271,910,746.79
  5. Step 5: Solve for x
    x = 271,910,746.79/16,435.14
  6. Step 6: Final answer
    x = 16,544.47

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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.