Home / 18,504.18-25,535.97-10,120.50

Finding the Fourth Proportional to 18,504.18, 25,535.97 and 10,120.50

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Solution

The fourth proportional to 18,504.18, 25,535.97 and 10,120.50 is: 13,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.18 : 25,535.97 = 10,120.50 : x
  2. Step 2: Convert to fraction form
    18,504.18/25,535.97 = 10,120.50/x
  3. Step 3: Cross multiply
    18,504.18x = 25,535.97 × 10,120.50
  4. Step 4: Simplify right side
    18,504.18x = 258,436,784.39
  5. Step 5: Solve for x
    x = 258,436,784.39/18,504.18
  6. Step 6: Final answer
    x = 13,966.40

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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.