Home / 18,878.03-28,316.82-4,837.95

Finding the Fourth Proportional to 18,878.03, 28,316.82 and 4,837.95

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Solution

The fourth proportional to 18,878.03, 28,316.82 and 4,837.95 is: 7,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.03 : 28,316.82 = 4,837.95 : x
  2. Step 2: Convert to fraction form
    18,878.03/28,316.82 = 4,837.95/x
  3. Step 3: Cross multiply
    18,878.03x = 28,316.82 × 4,837.95
  4. Step 4: Simplify right side
    18,878.03x = 136,995,359.32
  5. Step 5: Solve for x
    x = 136,995,359.32/18,878.03
  6. Step 6: Final answer
    x = 7,256.87

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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.