Home / 16,201.88-22,359-9,828.80

Finding the Fourth Proportional to 16,201.88, 22,359 and 9,828.80

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Solution

The fourth proportional to 16,201.88, 22,359 and 9,828.80 is: 13,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,201.88 : 22,359 = 9,828.80 : x
  2. Step 2: Convert to fraction form
    16,201.88/22,359 = 9,828.80/x
  3. Step 3: Cross multiply
    16,201.88x = 22,359 × 9,828.80
  4. Step 4: Simplify right side
    16,201.88x = 219,762,027.41
  5. Step 5: Solve for x
    x = 219,762,027.41/16,201.88
  6. Step 6: Final answer
    x = 13,563.99

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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.