Home / 18,377.35-25,361.31-10,419.91

Finding the Fourth Proportional to 18,377.35, 25,361.31 and 10,419.91

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Solution

The fourth proportional to 18,377.35, 25,361.31 and 10,419.91 is: 14,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.35 : 25,361.31 = 10,419.91 : x
  2. Step 2: Convert to fraction form
    18,377.35/25,361.31 = 10,419.91/x
  3. Step 3: Cross multiply
    18,377.35x = 25,361.31 × 10,419.91
  4. Step 4: Simplify right side
    18,377.35x = 264,262,567.68
  5. Step 5: Solve for x
    x = 264,262,567.68/18,377.35
  6. Step 6: Final answer
    x = 14,379.80

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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.