Home / 18,419.67-25,416.72-10,353.87

Finding the Fourth Proportional to 18,419.67, 25,416.72 and 10,353.87

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Solution

The fourth proportional to 18,419.67, 25,416.72 and 10,353.87 is: 14,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.67 : 25,416.72 = 10,353.87 : x
  2. Step 2: Convert to fraction form
    18,419.67/25,416.72 = 10,353.87/x
  3. Step 3: Cross multiply
    18,419.67x = 25,416.72 × 10,353.87
  4. Step 4: Simplify right side
    18,419.67x = 263,161,414.71
  5. Step 5: Solve for x
    x = 263,161,414.71/18,419.67
  6. Step 6: Final answer
    x = 14,286.98

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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.