Home / 18,219.45-27,337.68-7,123.26

Finding the Fourth Proportional to 18,219.45, 27,337.68 and 7,123.26

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Solution

The fourth proportional to 18,219.45, 27,337.68 and 7,123.26 is: 10,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.45 : 27,337.68 = 7,123.26 : x
  2. Step 2: Convert to fraction form
    18,219.45/27,337.68 = 7,123.26/x
  3. Step 3: Cross multiply
    18,219.45x = 27,337.68 × 7,123.26
  4. Step 4: Simplify right side
    18,219.45x = 194,733,402.44
  5. Step 5: Solve for x
    x = 194,733,402.44/18,219.45
  6. Step 6: Final answer
    x = 10,688.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.