Home / 12,277.84-18,419.28-3,958.96

Finding the Fourth Proportional to 12,277.84, 18,419.28 and 3,958.96

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Solution

The fourth proportional to 12,277.84, 18,419.28 and 3,958.96 is: 5,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.84 : 18,419.28 = 3,958.96 : x
  2. Step 2: Convert to fraction form
    12,277.84/18,419.28 = 3,958.96/x
  3. Step 3: Cross multiply
    12,277.84x = 18,419.28 × 3,958.96
  4. Step 4: Simplify right side
    12,277.84x = 72,921,192.75
  5. Step 5: Solve for x
    x = 72,921,192.75/12,277.84
  6. Step 6: Final answer
    x = 5,939.25

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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.