Home / 18,808.56-28,213.44-5,661.04

Finding the Fourth Proportional to 18,808.56, 28,213.44 and 5,661.04

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Solution

The fourth proportional to 18,808.56, 28,213.44 and 5,661.04 is: 8,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.56 : 28,213.44 = 5,661.04 : x
  2. Step 2: Convert to fraction form
    18,808.56/28,213.44 = 5,661.04/x
  3. Step 3: Cross multiply
    18,808.56x = 28,213.44 × 5,661.04
  4. Step 4: Simplify right side
    18,808.56x = 159,717,412.38
  5. Step 5: Solve for x
    x = 159,717,412.38/18,808.56
  6. Step 6: Final answer
    x = 8,491.74

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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.