Home / 18,825.60-25,964.82-13,788.01

Finding the Fourth Proportional to 18,825.60, 25,964.82 and 13,788.01

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Solution

The fourth proportional to 18,825.60, 25,964.82 and 13,788.01 is: 19,016.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.60 : 25,964.82 = 13,788.01 : x
  2. Step 2: Convert to fraction form
    18,825.60/25,964.82 = 13,788.01/x
  3. Step 3: Cross multiply
    18,825.60x = 25,964.82 × 13,788.01
  4. Step 4: Simplify right side
    18,825.60x = 358,003,197.81
  5. Step 5: Solve for x
    x = 358,003,197.81/18,825.60
  6. Step 6: Final answer
    x = 19,016.83

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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.