Home / 18,378.33-25,362.11-9,994.81

Finding the Fourth Proportional to 18,378.33, 25,362.11 and 9,994.81

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Solution

The fourth proportional to 18,378.33, 25,362.11 and 9,994.81 is: 13,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.33 : 25,362.11 = 9,994.81 : x
  2. Step 2: Convert to fraction form
    18,378.33/25,362.11 = 9,994.81/x
  3. Step 3: Cross multiply
    18,378.33x = 25,362.11 × 9,994.81
  4. Step 4: Simplify right side
    18,378.33x = 253,489,420.68
  5. Step 5: Solve for x
    x = 253,489,420.68/18,378.33
  6. Step 6: Final answer
    x = 13,792.84

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1.5x scale

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.