Home / 13,859.58-20,799.40-5,541.92

Finding the Fourth Proportional to 13,859.58, 20,799.40 and 5,541.92

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Solution

The fourth proportional to 13,859.58, 20,799.40 and 5,541.92 is: 8,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.58 : 20,799.40 = 5,541.92 : x
  2. Step 2: Convert to fraction form
    13,859.58/20,799.40 = 5,541.92/x
  3. Step 3: Cross multiply
    13,859.58x = 20,799.40 × 5,541.92
  4. Step 4: Simplify right side
    13,859.58x = 115,268,558.01
  5. Step 5: Solve for x
    x = 115,268,558.01/13,859.58
  6. Step 6: Final answer
    x = 8,316.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.