Home / 7,018.86-10,520.73-3,728.64

Finding the Fourth Proportional to 7,018.86, 10,520.73 and 3,728.64

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Solution

The fourth proportional to 7,018.86, 10,520.73 and 3,728.64 is: 5,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.86 : 10,520.73 = 3,728.64 : x
  2. Step 2: Convert to fraction form
    7,018.86/10,520.73 = 3,728.64/x
  3. Step 3: Cross multiply
    7,018.86x = 10,520.73 × 3,728.64
  4. Step 4: Simplify right side
    7,018.86x = 39,228,014.71
  5. Step 5: Solve for x
    x = 39,228,014.71/7,018.86
  6. Step 6: Final answer
    x = 5,588.94

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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.