Home / 18,378.24-25,362.24-9,994.56

Finding the Fourth Proportional to 18,378.24, 25,362.24 and 9,994.56

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Solution

The fourth proportional to 18,378.24, 25,362.24 and 9,994.56 is: 13,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.24 : 25,362.24 = 9,994.56 : x
  2. Step 2: Convert to fraction form
    18,378.24/25,362.24 = 9,994.56/x
  3. Step 3: Cross multiply
    18,378.24x = 25,362.24 × 9,994.56
  4. Step 4: Simplify right side
    18,378.24x = 253,484,429.41
  5. Step 5: Solve for x
    x = 253,484,429.41/18,378.24
  6. Step 6: Final answer
    x = 13,792.64

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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.