Home / 12,830.78-19,235.23-5,034.13

Finding the Fourth Proportional to 12,830.78, 19,235.23 and 5,034.13

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Solution

The fourth proportional to 12,830.78, 19,235.23 and 5,034.13 is: 7,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.78 : 19,235.23 = 5,034.13 : x
  2. Step 2: Convert to fraction form
    12,830.78/19,235.23 = 5,034.13/x
  3. Step 3: Cross multiply
    12,830.78x = 19,235.23 × 5,034.13
  4. Step 4: Simplify right side
    12,830.78x = 96,832,648.40
  5. Step 5: Solve for x
    x = 96,832,648.40/12,830.78
  6. Step 6: Final answer
    x = 7,546.90

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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.