Home / 13,461.10-20,187.33-4,453.54

Finding the Fourth Proportional to 13,461.10, 20,187.33 and 4,453.54

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Solution

The fourth proportional to 13,461.10, 20,187.33 and 4,453.54 is: 6,678.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.10 : 20,187.33 = 4,453.54 : x
  2. Step 2: Convert to fraction form
    13,461.10/20,187.33 = 4,453.54/x
  3. Step 3: Cross multiply
    13,461.10x = 20,187.33 × 4,453.54
  4. Step 4: Simplify right side
    13,461.10x = 89,905,081.65
  5. Step 5: Solve for x
    x = 89,905,081.65/13,461.10
  6. Step 6: Final answer
    x = 6,678.88

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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.