Home / 18,317.40-25,278.06-9,933.90

Finding the Fourth Proportional to 18,317.40, 25,278.06 and 9,933.90

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Solution

The fourth proportional to 18,317.40, 25,278.06 and 9,933.90 is: 13,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.40 : 25,278.06 = 9,933.90 : x
  2. Step 2: Convert to fraction form
    18,317.40/25,278.06 = 9,933.90/x
  3. Step 3: Cross multiply
    18,317.40x = 25,278.06 × 9,933.90
  4. Step 4: Simplify right side
    18,317.40x = 251,109,720.23
  5. Step 5: Solve for x
    x = 251,109,720.23/18,317.40
  6. Step 6: Final answer
    x = 13,708.81

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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.