Home / 18,709.29-25,818.84-10,325.79

Finding the Fourth Proportional to 18,709.29, 25,818.84 and 10,325.79

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Solution

The fourth proportional to 18,709.29, 25,818.84 and 10,325.79 is: 14,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.29 : 25,818.84 = 10,325.79 : x
  2. Step 2: Convert to fraction form
    18,709.29/25,818.84 = 10,325.79/x
  3. Step 3: Cross multiply
    18,709.29x = 25,818.84 × 10,325.79
  4. Step 4: Simplify right side
    18,709.29x = 266,599,919.88
  5. Step 5: Solve for x
    x = 266,599,919.88/18,709.29
  6. Step 6: Final answer
    x = 14,249.60

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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.