Home / 9,419.78-14,129.67-3,576.39

Finding the Fourth Proportional to 9,419.78, 14,129.67 and 3,576.39

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Solution

The fourth proportional to 9,419.78, 14,129.67 and 3,576.39 is: 5,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.78 : 14,129.67 = 3,576.39 : x
  2. Step 2: Convert to fraction form
    9,419.78/14,129.67 = 3,576.39/x
  3. Step 3: Cross multiply
    9,419.78x = 14,129.67 × 3,576.39
  4. Step 4: Simplify right side
    9,419.78x = 50,533,201.55
  5. Step 5: Solve for x
    x = 50,533,201.55/9,419.78
  6. Step 6: Final answer
    x = 5,364.59

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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.