Home / 8,320.19-12,480.41-2,773.45

Finding the Fourth Proportional to 8,320.19, 12,480.41 and 2,773.45

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Solution

The fourth proportional to 8,320.19, 12,480.41 and 2,773.45 is: 4,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.19 : 12,480.41 = 2,773.45 : x
  2. Step 2: Convert to fraction form
    8,320.19/12,480.41 = 2,773.45/x
  3. Step 3: Cross multiply
    8,320.19x = 12,480.41 × 2,773.45
  4. Step 4: Simplify right side
    8,320.19x = 34,613,768.85
  5. Step 5: Solve for x
    x = 34,613,768.85/8,320.19
  6. Step 6: Final answer
    x = 4,160.21

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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.