Home / 8,145.08-11,237.46-5,160.48

Finding the Fourth Proportional to 8,145.08, 11,237.46 and 5,160.48

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Solution

The fourth proportional to 8,145.08, 11,237.46 and 5,160.48 is: 7,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.08 : 11,237.46 = 5,160.48 : x
  2. Step 2: Convert to fraction form
    8,145.08/11,237.46 = 5,160.48/x
  3. Step 3: Cross multiply
    8,145.08x = 11,237.46 × 5,160.48
  4. Step 4: Simplify right side
    8,145.08x = 57,990,687.58
  5. Step 5: Solve for x
    x = 57,990,687.58/8,145.08
  6. Step 6: Final answer
    x = 7,119.72

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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.