Home / 18,438.33-25,445.80-10,374.51

Finding the Fourth Proportional to 18,438.33, 25,445.80 and 10,374.51

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Solution

The fourth proportional to 18,438.33, 25,445.80 and 10,374.51 is: 14,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.33 : 25,445.80 = 10,374.51 : x
  2. Step 2: Convert to fraction form
    18,438.33/25,445.80 = 10,374.51/x
  3. Step 3: Cross multiply
    18,438.33x = 25,445.80 × 10,374.51
  4. Step 4: Simplify right side
    18,438.33x = 263,987,706.56
  5. Step 5: Solve for x
    x = 263,987,706.56/18,438.33
  6. Step 6: Final answer
    x = 14,317.33

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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.