Home / 18,504.79-25,536.09-10,120.75

Finding the Fourth Proportional to 18,504.79, 25,536.09 and 10,120.75

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Solution

The fourth proportional to 18,504.79, 25,536.09 and 10,120.75 is: 13,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.79 : 25,536.09 = 10,120.75 : x
  2. Step 2: Convert to fraction form
    18,504.79/25,536.09 = 10,120.75/x
  3. Step 3: Cross multiply
    18,504.79x = 25,536.09 × 10,120.75
  4. Step 4: Simplify right side
    18,504.79x = 258,444,382.87
  5. Step 5: Solve for x
    x = 258,444,382.87/18,504.79
  6. Step 6: Final answer
    x = 13,966.35

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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.