Home / 12,291.63-18,435.99-3,407.61

Finding the Fourth Proportional to 12,291.63, 18,435.99 and 3,407.61

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Solution

The fourth proportional to 12,291.63, 18,435.99 and 3,407.61 is: 5,111.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.63 : 18,435.99 = 3,407.61 : x
  2. Step 2: Convert to fraction form
    12,291.63/18,435.99 = 3,407.61/x
  3. Step 3: Cross multiply
    12,291.63x = 18,435.99 × 3,407.61
  4. Step 4: Simplify right side
    12,291.63x = 62,822,663.88
  5. Step 5: Solve for x
    x = 62,822,663.88/12,291.63
  6. Step 6: Final answer
    x = 5,111.01

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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.