Home / 12,765.20-19,160.44-10,452.64

Finding the Fourth Proportional to 12,765.20, 19,160.44 and 10,452.64

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Solution

The fourth proportional to 12,765.20, 19,160.44 and 10,452.64 is: 15,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.20 : 19,160.44 = 10,452.64 : x
  2. Step 2: Convert to fraction form
    12,765.20/19,160.44 = 10,452.64/x
  3. Step 3: Cross multiply
    12,765.20x = 19,160.44 × 10,452.64
  4. Step 4: Simplify right side
    12,765.20x = 200,277,181.56
  5. Step 5: Solve for x
    x = 200,277,181.56/12,765.20
  6. Step 6: Final answer
    x = 15,689.31

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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.