Home / 16,809.12-23,202.72-13,659.84

Finding the Fourth Proportional to 16,809.12, 23,202.72 and 13,659.84

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Solution

The fourth proportional to 16,809.12, 23,202.72 and 13,659.84 is: 18,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.12 : 23,202.72 = 13,659.84 : x
  2. Step 2: Convert to fraction form
    16,809.12/23,202.72 = 13,659.84/x
  3. Step 3: Cross multiply
    16,809.12x = 23,202.72 × 13,659.84
  4. Step 4: Simplify right side
    16,809.12x = 316,945,442.76
  5. Step 5: Solve for x
    x = 316,945,442.76/16,809.12
  6. Step 6: Final answer
    x = 18,855.56

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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.