Home / 13,318.35-19,963.74-4,992.51

Finding the Fourth Proportional to 13,318.35, 19,963.74 and 4,992.51

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Solution

The fourth proportional to 13,318.35, 19,963.74 and 4,992.51 is: 7,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.35 : 19,963.74 = 4,992.51 : x
  2. Step 2: Convert to fraction form
    13,318.35/19,963.74 = 4,992.51/x
  3. Step 3: Cross multiply
    13,318.35x = 19,963.74 × 4,992.51
  4. Step 4: Simplify right side
    13,318.35x = 99,669,171.59
  5. Step 5: Solve for x
    x = 99,669,171.59/13,318.35
  6. Step 6: Final answer
    x = 7,483.60

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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.