Home / 18,350.15-25,322.42-10,391.90

Finding the Fourth Proportional to 18,350.15, 25,322.42 and 10,391.90

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Solution

The fourth proportional to 18,350.15, 25,322.42 and 10,391.90 is: 14,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.15 : 25,322.42 = 10,391.90 : x
  2. Step 2: Convert to fraction form
    18,350.15/25,322.42 = 10,391.90/x
  3. Step 3: Cross multiply
    18,350.15x = 25,322.42 × 10,391.90
  4. Step 4: Simplify right side
    18,350.15x = 263,147,955.77
  5. Step 5: Solve for x
    x = 263,147,955.77/18,350.15
  6. Step 6: Final answer
    x = 14,340.37

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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.