Home / 18,829.86-28,227.35-6,977.03

Finding the Fourth Proportional to 18,829.86, 28,227.35 and 6,977.03

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Solution

The fourth proportional to 18,829.86, 28,227.35 and 6,977.03 is: 10,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.86 : 28,227.35 = 6,977.03 : x
  2. Step 2: Convert to fraction form
    18,829.86/28,227.35 = 6,977.03/x
  3. Step 3: Cross multiply
    18,829.86x = 28,227.35 × 6,977.03
  4. Step 4: Simplify right side
    18,829.86x = 196,943,102.86
  5. Step 5: Solve for x
    x = 196,943,102.86/18,829.86
  6. Step 6: Final answer
    x = 10,459.08

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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.