Home / 18,858.83-28,291.71-6,209.31

Finding the Fourth Proportional to 18,858.83, 28,291.71 and 6,209.31

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Solution

The fourth proportional to 18,858.83, 28,291.71 and 6,209.31 is: 9,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.83 : 28,291.71 = 6,209.31 : x
  2. Step 2: Convert to fraction form
    18,858.83/28,291.71 = 6,209.31/x
  3. Step 3: Cross multiply
    18,858.83x = 28,291.71 × 6,209.31
  4. Step 4: Simplify right side
    18,858.83x = 175,671,997.82
  5. Step 5: Solve for x
    x = 175,671,997.82/18,858.83
  6. Step 6: Final answer
    x = 9,315.11

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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.