Home / 12,423.24-18,631.06-3,539.29

Finding the Fourth Proportional to 12,423.24, 18,631.06 and 3,539.29

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Solution

The fourth proportional to 12,423.24, 18,631.06 and 3,539.29 is: 5,307.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.24 : 18,631.06 = 3,539.29 : x
  2. Step 2: Convert to fraction form
    12,423.24/18,631.06 = 3,539.29/x
  3. Step 3: Cross multiply
    12,423.24x = 18,631.06 × 3,539.29
  4. Step 4: Simplify right side
    12,423.24x = 65,940,752.06
  5. Step 5: Solve for x
    x = 65,940,752.06/12,423.24
  6. Step 6: Final answer
    x = 5,307.86

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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.