Home / 18,828.90-28,242.59-6,348.64

Finding the Fourth Proportional to 18,828.90, 28,242.59 and 6,348.64

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Solution

The fourth proportional to 18,828.90, 28,242.59 and 6,348.64 is: 9,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.90 : 28,242.59 = 6,348.64 : x
  2. Step 2: Convert to fraction form
    18,828.90/28,242.59 = 6,348.64/x
  3. Step 3: Cross multiply
    18,828.90x = 28,242.59 × 6,348.64
  4. Step 4: Simplify right side
    18,828.90x = 179,302,036.58
  5. Step 5: Solve for x
    x = 179,302,036.58/18,828.90
  6. Step 6: Final answer
    x = 9,522.71

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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.