Home / 14,072.96-19,419.72-7,785.56

Finding the Fourth Proportional to 14,072.96, 19,419.72 and 7,785.56

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Solution

The fourth proportional to 14,072.96, 19,419.72 and 7,785.56 is: 10,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.96 : 19,419.72 = 7,785.56 : x
  2. Step 2: Convert to fraction form
    14,072.96/19,419.72 = 7,785.56/x
  3. Step 3: Cross multiply
    14,072.96x = 19,419.72 × 7,785.56
  4. Step 4: Simplify right side
    14,072.96x = 151,193,395.24
  5. Step 5: Solve for x
    x = 151,193,395.24/14,072.96
  6. Step 6: Final answer
    x = 10,743.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.