Home / 13,320.54-19,981.24-6,993.82

Finding the Fourth Proportional to 13,320.54, 19,981.24 and 6,993.82

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Solution

The fourth proportional to 13,320.54, 19,981.24 and 6,993.82 is: 10,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.54 : 19,981.24 = 6,993.82 : x
  2. Step 2: Convert to fraction form
    13,320.54/19,981.24 = 6,993.82/x
  3. Step 3: Cross multiply
    13,320.54x = 19,981.24 × 6,993.82
  4. Step 4: Simplify right side
    13,320.54x = 139,745,186.57
  5. Step 5: Solve for x
    x = 139,745,186.57/13,320.54
  6. Step 6: Final answer
    x = 10,490.95

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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.