Home / 18,378.04-25,360.68-9,994

Finding the Fourth Proportional to 18,378.04, 25,360.68 and 9,994

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Solution

The fourth proportional to 18,378.04, 25,360.68 and 9,994 is: 13,791.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.04 : 25,360.68 = 9,994 : x
  2. Step 2: Convert to fraction form
    18,378.04/25,360.68 = 9,994/x
  3. Step 3: Cross multiply
    18,378.04x = 25,360.68 × 9,994
  4. Step 4: Simplify right side
    18,378.04x = 253,454,635.92
  5. Step 5: Solve for x
    x = 253,454,635.92/18,378.04
  6. Step 6: Final answer
    x = 13,791.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.