Home / 14,043.53-21,003.32-12,494.40

Finding the Fourth Proportional to 14,043.53, 21,003.32 and 12,494.40

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Solution

The fourth proportional to 14,043.53, 21,003.32 and 12,494.40 is: 18,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.53 : 21,003.32 = 12,494.40 : x
  2. Step 2: Convert to fraction form
    14,043.53/21,003.32 = 12,494.40/x
  3. Step 3: Cross multiply
    14,043.53x = 21,003.32 × 12,494.40
  4. Step 4: Simplify right side
    14,043.53x = 262,423,912.64
  5. Step 5: Solve for x
    x = 262,423,912.64/14,043.53
  6. Step 6: Final answer
    x = 18,686.47

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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.