Home / 18,503.62-25,535.37-10,120.66

Finding the Fourth Proportional to 18,503.62, 25,535.37 and 10,120.66

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Solution

The fourth proportional to 18,503.62, 25,535.37 and 10,120.66 is: 13,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.62 : 25,535.37 = 10,120.66 : x
  2. Step 2: Convert to fraction form
    18,503.62/25,535.37 = 10,120.66/x
  3. Step 3: Cross multiply
    18,503.62x = 25,535.37 × 10,120.66
  4. Step 4: Simplify right side
    18,503.62x = 258,434,797.74
  5. Step 5: Solve for x
    x = 258,434,797.74/18,503.62
  6. Step 6: Final answer
    x = 13,966.72

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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.