Home / 10,921.70-16,386.60-4,352.60

Finding the Fourth Proportional to 10,921.70, 16,386.60 and 4,352.60

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Solution

The fourth proportional to 10,921.70, 16,386.60 and 4,352.60 is: 6,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.70 : 16,386.60 = 4,352.60 : x
  2. Step 2: Convert to fraction form
    10,921.70/16,386.60 = 4,352.60/x
  3. Step 3: Cross multiply
    10,921.70x = 16,386.60 × 4,352.60
  4. Step 4: Simplify right side
    10,921.70x = 71,324,315.16
  5. Step 5: Solve for x
    x = 71,324,315.16/10,921.70
  6. Step 6: Final answer
    x = 6,530.51

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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.