Home / 14,170.37-21,339.89-12,343.55

Finding the Fourth Proportional to 14,170.37, 21,339.89 and 12,343.55

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Solution

The fourth proportional to 14,170.37, 21,339.89 and 12,343.55 is: 18,588.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.37 : 21,339.89 = 12,343.55 : x
  2. Step 2: Convert to fraction form
    14,170.37/21,339.89 = 12,343.55/x
  3. Step 3: Cross multiply
    14,170.37x = 21,339.89 × 12,343.55
  4. Step 4: Simplify right side
    14,170.37x = 263,409,830.79
  5. Step 5: Solve for x
    x = 263,409,830.79/14,170.37
  6. Step 6: Final answer
    x = 18,588.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.