Home / 18,738.59-25,859.23-10,355.09

Finding the Fourth Proportional to 18,738.59, 25,859.23 and 10,355.09

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Solution

The fourth proportional to 18,738.59, 25,859.23 and 10,355.09 is: 14,290.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.59 : 25,859.23 = 10,355.09 : x
  2. Step 2: Convert to fraction form
    18,738.59/25,859.23 = 10,355.09/x
  3. Step 3: Cross multiply
    18,738.59x = 25,859.23 × 10,355.09
  4. Step 4: Simplify right side
    18,738.59x = 267,774,498.80
  5. Step 5: Solve for x
    x = 267,774,498.80/18,738.59
  6. Step 6: Final answer
    x = 14,290.01

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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.