Home / 16,814.88-23,210.86-13,220.48

Finding the Fourth Proportional to 16,814.88, 23,210.86 and 13,220.48

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Solution

The fourth proportional to 16,814.88, 23,210.86 and 13,220.48 is: 18,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,814.88 : 23,210.86 = 13,220.48 : x
  2. Step 2: Convert to fraction form
    16,814.88/23,210.86 = 13,220.48/x
  3. Step 3: Cross multiply
    16,814.88x = 23,210.86 × 13,220.48
  4. Step 4: Simplify right side
    16,814.88x = 306,858,710.41
  5. Step 5: Solve for x
    x = 306,858,710.41/16,814.88
  6. Step 6: Final answer
    x = 18,249.24

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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.