Home / 15,285.92-21,078.24-9,609.44

Finding the Fourth Proportional to 15,285.92, 21,078.24 and 9,609.44

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Solution

The fourth proportional to 15,285.92, 21,078.24 and 9,609.44 is: 13,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.92 : 21,078.24 = 9,609.44 : x
  2. Step 2: Convert to fraction form
    15,285.92/21,078.24 = 9,609.44/x
  3. Step 3: Cross multiply
    15,285.92x = 21,078.24 × 9,609.44
  4. Step 4: Simplify right side
    15,285.92x = 202,550,082.59
  5. Step 5: Solve for x
    x = 202,550,082.59/15,285.92
  6. Step 6: Final answer
    x = 13,250.76

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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.