Home / 8,077.20-11,145.99-4,720.95

Finding the Fourth Proportional to 8,077.20, 11,145.99 and 4,720.95

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Solution

The fourth proportional to 8,077.20, 11,145.99 and 4,720.95 is: 6,514.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.20 : 11,145.99 = 4,720.95 : x
  2. Step 2: Convert to fraction form
    8,077.20/11,145.99 = 4,720.95/x
  3. Step 3: Cross multiply
    8,077.20x = 11,145.99 × 4,720.95
  4. Step 4: Simplify right side
    8,077.20x = 52,619,661.49
  5. Step 5: Solve for x
    x = 52,619,661.49/8,077.20
  6. Step 6: Final answer
    x = 6,514.59

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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.