Home / 18,376.72-25,360.14-9,993.22

Finding the Fourth Proportional to 18,376.72, 25,360.14 and 9,993.22

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Solution

The fourth proportional to 18,376.72, 25,360.14 and 9,993.22 is: 13,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.72 : 25,360.14 = 9,993.22 : x
  2. Step 2: Convert to fraction form
    18,376.72/25,360.14 = 9,993.22/x
  3. Step 3: Cross multiply
    18,376.72x = 25,360.14 × 9,993.22
  4. Step 4: Simplify right side
    18,376.72x = 253,429,458.25
  5. Step 5: Solve for x
    x = 253,429,458.25/18,376.72
  6. Step 6: Final answer
    x = 13,790.79

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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.