Home / 18,185.20-25,106.70-12,530.02

Finding the Fourth Proportional to 18,185.20, 25,106.70 and 12,530.02

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Solution

The fourth proportional to 18,185.20, 25,106.70 and 12,530.02 is: 17,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.20 : 25,106.70 = 12,530.02 : x
  2. Step 2: Convert to fraction form
    18,185.20/25,106.70 = 12,530.02/x
  3. Step 3: Cross multiply
    18,185.20x = 25,106.70 × 12,530.02
  4. Step 4: Simplify right side
    18,185.20x = 314,587,453.13
  5. Step 5: Solve for x
    x = 314,587,453.13/18,185.20
  6. Step 6: Final answer
    x = 17,299.09

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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.