Home / 18,805.12-28,208.08-6,325.52

Finding the Fourth Proportional to 18,805.12, 28,208.08 and 6,325.52

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Solution

The fourth proportional to 18,805.12, 28,208.08 and 6,325.52 is: 9,488.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.12 : 28,208.08 = 6,325.52 : x
  2. Step 2: Convert to fraction form
    18,805.12/28,208.08 = 6,325.52/x
  3. Step 3: Cross multiply
    18,805.12x = 28,208.08 × 6,325.52
  4. Step 4: Simplify right side
    18,805.12x = 178,430,774.20
  5. Step 5: Solve for x
    x = 178,430,774.20/18,805.12
  6. Step 6: Final answer
    x = 9,488.41

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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.