Home / 13,325.12-19,980-5,539.52

Finding the Fourth Proportional to 13,325.12, 19,980 and 5,539.52

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Solution

The fourth proportional to 13,325.12, 19,980 and 5,539.52 is: 8,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.12 : 19,980 = 5,539.52 : x
  2. Step 2: Convert to fraction form
    13,325.12/19,980 = 5,539.52/x
  3. Step 3: Cross multiply
    13,325.12x = 19,980 × 5,539.52
  4. Step 4: Simplify right side
    13,325.12x = 110,679,609.60
  5. Step 5: Solve for x
    x = 110,679,609.60/13,325.12
  6. Step 6: Final answer
    x = 8,306.09

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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.