Home / 18,776.18-25,912.37-10,818.91

Finding the Fourth Proportional to 18,776.18, 25,912.37 and 10,818.91

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Solution

The fourth proportional to 18,776.18, 25,912.37 and 10,818.91 is: 14,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.18 : 25,912.37 = 10,818.91 : x
  2. Step 2: Convert to fraction form
    18,776.18/25,912.37 = 10,818.91/x
  3. Step 3: Cross multiply
    18,776.18x = 25,912.37 × 10,818.91
  4. Step 4: Simplify right side
    18,776.18x = 280,343,658.35
  5. Step 5: Solve for x
    x = 280,343,658.35/18,776.18
  6. Step 6: Final answer
    x = 14,930.81

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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.