Home / 12,529.29-18,786.63-8,373.99

Finding the Fourth Proportional to 12,529.29, 18,786.63 and 8,373.99

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Solution

The fourth proportional to 12,529.29, 18,786.63 and 8,373.99 is: 12,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.29 : 18,786.63 = 8,373.99 : x
  2. Step 2: Convert to fraction form
    12,529.29/18,786.63 = 8,373.99/x
  3. Step 3: Cross multiply
    12,529.29x = 18,786.63 × 8,373.99
  4. Step 4: Simplify right side
    12,529.29x = 157,319,051.75
  5. Step 5: Solve for x
    x = 157,319,051.75/12,529.29
  6. Step 6: Final answer
    x = 12,556.10

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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.