Home / 13,190.54-19,779.40-4,874.46

Finding the Fourth Proportional to 13,190.54, 19,779.40 and 4,874.46

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Solution

The fourth proportional to 13,190.54, 19,779.40 and 4,874.46 is: 7,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.54 : 19,779.40 = 4,874.46 : x
  2. Step 2: Convert to fraction form
    13,190.54/19,779.40 = 4,874.46/x
  3. Step 3: Cross multiply
    13,190.54x = 19,779.40 × 4,874.46
  4. Step 4: Simplify right side
    13,190.54x = 96,413,894.12
  5. Step 5: Solve for x
    x = 96,413,894.12/13,190.54
  6. Step 6: Final answer
    x = 7,309.32

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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.