Home / 13,319.34-19,979.91-4,560.39

Finding the Fourth Proportional to 13,319.34, 19,979.91 and 4,560.39

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Solution

The fourth proportional to 13,319.34, 19,979.91 and 4,560.39 is: 6,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.34 : 19,979.91 = 4,560.39 : x
  2. Step 2: Convert to fraction form
    13,319.34/19,979.91 = 4,560.39/x
  3. Step 3: Cross multiply
    13,319.34x = 19,979.91 × 4,560.39
  4. Step 4: Simplify right side
    13,319.34x = 91,116,181.76
  5. Step 5: Solve for x
    x = 91,116,181.76/13,319.34
  6. Step 6: Final answer
    x = 6,840.89

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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.