Home / 18,775.08-25,908.66-10,392.12

Finding the Fourth Proportional to 18,775.08, 25,908.66 and 10,392.12

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Solution

The fourth proportional to 18,775.08, 25,908.66 and 10,392.12 is: 14,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.08 : 25,908.66 = 10,392.12 : x
  2. Step 2: Convert to fraction form
    18,775.08/25,908.66 = 10,392.12/x
  3. Step 3: Cross multiply
    18,775.08x = 25,908.66 × 10,392.12
  4. Step 4: Simplify right side
    18,775.08x = 269,245,903.76
  5. Step 5: Solve for x
    x = 269,245,903.76/18,775.08
  6. Step 6: Final answer
    x = 14,340.60

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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.