Home / 14,345.86-21,520.03-3,957.61

Finding the Fourth Proportional to 14,345.86, 21,520.03 and 3,957.61

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Solution

The fourth proportional to 14,345.86, 21,520.03 and 3,957.61 is: 5,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.86 : 21,520.03 = 3,957.61 : x
  2. Step 2: Convert to fraction form
    14,345.86/21,520.03 = 3,957.61/x
  3. Step 3: Cross multiply
    14,345.86x = 21,520.03 × 3,957.61
  4. Step 4: Simplify right side
    14,345.86x = 85,167,870.00
  5. Step 5: Solve for x
    x = 85,167,870.00/14,345.86
  6. Step 6: Final answer
    x = 5,936.76

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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.