Home / 14,380.74-21,551.67-12,670.02

Finding the Fourth Proportional to 14,380.74, 21,551.67 and 12,670.02

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Solution

The fourth proportional to 14,380.74, 21,551.67 and 12,670.02 is: 18,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.74 : 21,551.67 = 12,670.02 : x
  2. Step 2: Convert to fraction form
    14,380.74/21,551.67 = 12,670.02/x
  3. Step 3: Cross multiply
    14,380.74x = 21,551.67 × 12,670.02
  4. Step 4: Simplify right side
    14,380.74x = 273,060,089.93
  5. Step 5: Solve for x
    x = 273,060,089.93/14,380.74
  6. Step 6: Final answer
    x = 18,987.90

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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.