Home / 8,145.30-11,240.55-4,609.20

Finding the Fourth Proportional to 8,145.30, 11,240.55 and 4,609.20

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Solution

The fourth proportional to 8,145.30, 11,240.55 and 4,609.20 is: 6,360.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.30 : 11,240.55 = 4,609.20 : x
  2. Step 2: Convert to fraction form
    8,145.30/11,240.55 = 4,609.20/x
  3. Step 3: Cross multiply
    8,145.30x = 11,240.55 × 4,609.20
  4. Step 4: Simplify right side
    8,145.30x = 51,809,943.06
  5. Step 5: Solve for x
    x = 51,809,943.06/8,145.30
  6. Step 6: Final answer
    x = 6,360.72

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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.