Home / 8,724.14-12,039.64-4,998.86

Finding the Fourth Proportional to 8,724.14, 12,039.64 and 4,998.86

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Solution

The fourth proportional to 8,724.14, 12,039.64 and 4,998.86 is: 6,898.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.14 : 12,039.64 = 4,998.86 : x
  2. Step 2: Convert to fraction form
    8,724.14/12,039.64 = 4,998.86/x
  3. Step 3: Cross multiply
    8,724.14x = 12,039.64 × 4,998.86
  4. Step 4: Simplify right side
    8,724.14x = 60,184,474.81
  5. Step 5: Solve for x
    x = 60,184,474.81/8,724.14
  6. Step 6: Final answer
    x = 6,898.61

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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.