Home / 18,581.09-25,641.72-10,083.20

Finding the Fourth Proportional to 18,581.09, 25,641.72 and 10,083.20

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Solution

The fourth proportional to 18,581.09, 25,641.72 and 10,083.20 is: 13,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.09 : 25,641.72 = 10,083.20 : x
  2. Step 2: Convert to fraction form
    18,581.09/25,641.72 = 10,083.20/x
  3. Step 3: Cross multiply
    18,581.09x = 25,641.72 × 10,083.20
  4. Step 4: Simplify right side
    18,581.09x = 258,550,462.90
  5. Step 5: Solve for x
    x = 258,550,462.90/18,581.09
  6. Step 6: Final answer
    x = 13,914.71

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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.