Home / 13,239.70-19,830.38-8,034.64

Finding the Fourth Proportional to 13,239.70, 19,830.38 and 8,034.64

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Solution

The fourth proportional to 13,239.70, 19,830.38 and 8,034.64 is: 12,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.70 : 19,830.38 = 8,034.64 : x
  2. Step 2: Convert to fraction form
    13,239.70/19,830.38 = 8,034.64/x
  3. Step 3: Cross multiply
    13,239.70x = 19,830.38 × 8,034.64
  4. Step 4: Simplify right side
    13,239.70x = 159,329,964.36
  5. Step 5: Solve for x
    x = 159,329,964.36/13,239.70
  6. Step 6: Final answer
    x = 12,034.26

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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.