Home / 7,718.48-11,565.41-4,942.86

Finding the Fourth Proportional to 7,718.48, 11,565.41 and 4,942.86

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Solution

The fourth proportional to 7,718.48, 11,565.41 and 4,942.86 is: 7,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.48 : 11,565.41 = 4,942.86 : x
  2. Step 2: Convert to fraction form
    7,718.48/11,565.41 = 4,942.86/x
  3. Step 3: Cross multiply
    7,718.48x = 11,565.41 × 4,942.86
  4. Step 4: Simplify right side
    7,718.48x = 57,166,219.03
  5. Step 5: Solve for x
    x = 57,166,219.03/7,718.48
  6. Step 6: Final answer
    x = 7,406.41

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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.