Home / 18,625.53-25,703.73-10,128.22

Finding the Fourth Proportional to 18,625.53, 25,703.73 and 10,128.22

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Solution

The fourth proportional to 18,625.53, 25,703.73 and 10,128.22 is: 13,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.53 : 25,703.73 = 10,128.22 : x
  2. Step 2: Convert to fraction form
    18,625.53/25,703.73 = 10,128.22/x
  3. Step 3: Cross multiply
    18,625.53x = 25,703.73 × 10,128.22
  4. Step 4: Simplify right side
    18,625.53x = 260,333,032.26
  5. Step 5: Solve for x
    x = 260,333,032.26/18,625.53
  6. Step 6: Final answer
    x = 13,977.21

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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.