Home / 18,377.40-25,360.08-9,993.90

Finding the Fourth Proportional to 18,377.40, 25,360.08 and 9,993.90

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Solution

The fourth proportional to 18,377.40, 25,360.08 and 9,993.90 is: 13,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.40 : 25,360.08 = 9,993.90 : x
  2. Step 2: Convert to fraction form
    18,377.40/25,360.08 = 9,993.90/x
  3. Step 3: Cross multiply
    18,377.40x = 25,360.08 × 9,993.90
  4. Step 4: Simplify right side
    18,377.40x = 253,446,103.51
  5. Step 5: Solve for x
    x = 253,446,103.51/18,377.40
  6. Step 6: Final answer
    x = 13,791.18

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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.