Home / 18,709.26-28,068.21-5,561.34

Finding the Fourth Proportional to 18,709.26, 28,068.21 and 5,561.34

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Solution

The fourth proportional to 18,709.26, 28,068.21 and 5,561.34 is: 8,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.26 : 28,068.21 = 5,561.34 : x
  2. Step 2: Convert to fraction form
    18,709.26/28,068.21 = 5,561.34/x
  3. Step 3: Cross multiply
    18,709.26x = 28,068.21 × 5,561.34
  4. Step 4: Simplify right side
    18,709.26x = 156,096,859.00
  5. Step 5: Solve for x
    x = 156,096,859.00/18,709.26
  6. Step 6: Final answer
    x = 8,343.29

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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.