Home / 13,318.52-19,963.72-4,993.12

Finding the Fourth Proportional to 13,318.52, 19,963.72 and 4,993.12

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Solution

The fourth proportional to 13,318.52, 19,963.72 and 4,993.12 is: 7,484.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.52 : 19,963.72 = 4,993.12 : x
  2. Step 2: Convert to fraction form
    13,318.52/19,963.72 = 4,993.12/x
  3. Step 3: Cross multiply
    13,318.52x = 19,963.72 × 4,993.12
  4. Step 4: Simplify right side
    13,318.52x = 99,681,249.61
  5. Step 5: Solve for x
    x = 99,681,249.61/13,318.52
  6. Step 6: Final answer
    x = 7,484.41

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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.