Home / 18,208.55-25,128.30-10,251.06

Finding the Fourth Proportional to 18,208.55, 25,128.30 and 10,251.06

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Solution

The fourth proportional to 18,208.55, 25,128.30 and 10,251.06 is: 14,146.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.55 : 25,128.30 = 10,251.06 : x
  2. Step 2: Convert to fraction form
    18,208.55/25,128.30 = 10,251.06/x
  3. Step 3: Cross multiply
    18,208.55x = 25,128.30 × 10,251.06
  4. Step 4: Simplify right side
    18,208.55x = 257,591,711.00
  5. Step 5: Solve for x
    x = 257,591,711.00/18,208.55
  6. Step 6: Final answer
    x = 14,146.75

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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.