Home / 18,311.61-25,269.89-10,353.84

Finding the Fourth Proportional to 18,311.61, 25,269.89 and 10,353.84

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Solution

The fourth proportional to 18,311.61, 25,269.89 and 10,353.84 is: 14,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.61 : 25,269.89 = 10,353.84 : x
  2. Step 2: Convert to fraction form
    18,311.61/25,269.89 = 10,353.84/x
  3. Step 3: Cross multiply
    18,311.61x = 25,269.89 × 10,353.84
  4. Step 4: Simplify right side
    18,311.61x = 261,640,397.88
  5. Step 5: Solve for x
    x = 261,640,397.88/18,311.61
  6. Step 6: Final answer
    x = 14,288.22

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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.