Home / 8,677.86-13,015.14-4,231.06

Finding the Fourth Proportional to 8,677.86, 13,015.14 and 4,231.06

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Solution

The fourth proportional to 8,677.86, 13,015.14 and 4,231.06 is: 6,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.86 : 13,015.14 = 4,231.06 : x
  2. Step 2: Convert to fraction form
    8,677.86/13,015.14 = 4,231.06/x
  3. Step 3: Cross multiply
    8,677.86x = 13,015.14 × 4,231.06
  4. Step 4: Simplify right side
    8,677.86x = 55,067,848.83
  5. Step 5: Solve for x
    x = 55,067,848.83/8,677.86
  6. Step 6: Final answer
    x = 6,345.79

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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.