Home / 18,213.14-27,299.66-7,117.76

Finding the Fourth Proportional to 18,213.14, 27,299.66 and 7,117.76

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Solution

The fourth proportional to 18,213.14, 27,299.66 and 7,117.76 is: 10,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.14 : 27,299.66 = 7,117.76 : x
  2. Step 2: Convert to fraction form
    18,213.14/27,299.66 = 7,117.76/x
  3. Step 3: Cross multiply
    18,213.14x = 27,299.66 × 7,117.76
  4. Step 4: Simplify right side
    18,213.14x = 194,312,427.96
  5. Step 5: Solve for x
    x = 194,312,427.96/18,213.14
  6. Step 6: Final answer
    x = 10,668.80

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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.