Home / 13,310.39-19,954.75-4,985.74

Finding the Fourth Proportional to 13,310.39, 19,954.75 and 4,985.74

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Solution

The fourth proportional to 13,310.39, 19,954.75 and 4,985.74 is: 7,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.39 : 19,954.75 = 4,985.74 : x
  2. Step 2: Convert to fraction form
    13,310.39/19,954.75 = 4,985.74/x
  3. Step 3: Cross multiply
    13,310.39x = 19,954.75 × 4,985.74
  4. Step 4: Simplify right side
    13,310.39x = 99,489,195.27
  5. Step 5: Solve for x
    x = 99,489,195.27/13,310.39
  6. Step 6: Final answer
    x = 7,474.55

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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.