Home / 18,378.99-25,364.37-10,313.60

Finding the Fourth Proportional to 18,378.99, 25,364.37 and 10,313.60

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Solution

The fourth proportional to 18,378.99, 25,364.37 and 10,313.60 is: 14,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.99 : 25,364.37 = 10,313.60 : x
  2. Step 2: Convert to fraction form
    18,378.99/25,364.37 = 10,313.60/x
  3. Step 3: Cross multiply
    18,378.99x = 25,364.37 × 10,313.60
  4. Step 4: Simplify right side
    18,378.99x = 261,597,878.29
  5. Step 5: Solve for x
    x = 261,597,878.29/18,378.99
  6. Step 6: Final answer
    x = 14,233.53

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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.