Home / 14,170-21,238.56-12,529.74

Finding the Fourth Proportional to 14,170, 21,238.56 and 12,529.74

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Solution

The fourth proportional to 14,170, 21,238.56 and 12,529.74 is: 18,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170 : 21,238.56 = 12,529.74 : x
  2. Step 2: Convert to fraction form
    14,170/21,238.56 = 12,529.74/x
  3. Step 3: Cross multiply
    14,170x = 21,238.56 × 12,529.74
  4. Step 4: Simplify right side
    14,170x = 266,113,634.77
  5. Step 5: Solve for x
    x = 266,113,634.77/14,170
  6. Step 6: Final answer
    x = 18,780.07

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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.