Home / 12,260.48-18,390.29-3,941.06

Finding the Fourth Proportional to 12,260.48, 18,390.29 and 3,941.06

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Solution

The fourth proportional to 12,260.48, 18,390.29 and 3,941.06 is: 5,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.48 : 18,390.29 = 3,941.06 : x
  2. Step 2: Convert to fraction form
    12,260.48/18,390.29 = 3,941.06/x
  3. Step 3: Cross multiply
    12,260.48x = 18,390.29 × 3,941.06
  4. Step 4: Simplify right side
    12,260.48x = 72,477,124.65
  5. Step 5: Solve for x
    x = 72,477,124.65/12,260.48
  6. Step 6: Final answer
    x = 5,911.45

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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.