Home / 18,760.86-28,135.62-6,277.95

Finding the Fourth Proportional to 18,760.86, 28,135.62 and 6,277.95

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Solution

The fourth proportional to 18,760.86, 28,135.62 and 6,277.95 is: 9,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.86 : 28,135.62 = 6,277.95 : x
  2. Step 2: Convert to fraction form
    18,760.86/28,135.62 = 6,277.95/x
  3. Step 3: Cross multiply
    18,760.86x = 28,135.62 × 6,277.95
  4. Step 4: Simplify right side
    18,760.86x = 176,634,015.58
  5. Step 5: Solve for x
    x = 176,634,015.58/18,760.86
  6. Step 6: Final answer
    x = 9,415.03

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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.