Home / 13,318.47-19,972.52-4,993.95

Finding the Fourth Proportional to 13,318.47, 19,972.52 and 4,993.95

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Solution

The fourth proportional to 13,318.47, 19,972.52 and 4,993.95 is: 7,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.47 : 19,972.52 = 4,993.95 : x
  2. Step 2: Convert to fraction form
    13,318.47/19,972.52 = 4,993.95/x
  3. Step 3: Cross multiply
    13,318.47x = 19,972.52 × 4,993.95
  4. Step 4: Simplify right side
    13,318.47x = 99,741,741.28
  5. Step 5: Solve for x
    x = 99,741,741.28/13,318.47
  6. Step 6: Final answer
    x = 7,488.98

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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.