Home / 19,518.60-29,252.37-7,840.02

Finding the Fourth Proportional to 19,518.60, 29,252.37 and 7,840.02

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Solution

The fourth proportional to 19,518.60, 29,252.37 and 7,840.02 is: 11,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.60 : 29,252.37 = 7,840.02 : x
  2. Step 2: Convert to fraction form
    19,518.60/29,252.37 = 7,840.02/x
  3. Step 3: Cross multiply
    19,518.60x = 29,252.37 × 7,840.02
  4. Step 4: Simplify right side
    19,518.60x = 229,339,165.85
  5. Step 5: Solve for x
    x = 229,339,165.85/19,518.60
  6. Step 6: Final answer
    x = 11,749.78

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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.