Home / 13,230.52-19,845.90-4,345.72

Finding the Fourth Proportional to 13,230.52, 19,845.90 and 4,345.72

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Solution

The fourth proportional to 13,230.52, 19,845.90 and 4,345.72 is: 6,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.52 : 19,845.90 = 4,345.72 : x
  2. Step 2: Convert to fraction form
    13,230.52/19,845.90 = 4,345.72/x
  3. Step 3: Cross multiply
    13,230.52x = 19,845.90 × 4,345.72
  4. Step 4: Simplify right side
    13,230.52x = 86,244,724.55
  5. Step 5: Solve for x
    x = 86,244,724.55/13,230.52
  6. Step 6: Final answer
    x = 6,518.62

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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.