Home / 8,320.12-12,480.21-4,854.94

Finding the Fourth Proportional to 8,320.12, 12,480.21 and 4,854.94

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Solution

The fourth proportional to 8,320.12, 12,480.21 and 4,854.94 is: 7,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.12 : 12,480.21 = 4,854.94 : x
  2. Step 2: Convert to fraction form
    8,320.12/12,480.21 = 4,854.94/x
  3. Step 3: Cross multiply
    8,320.12x = 12,480.21 × 4,854.94
  4. Step 4: Simplify right side
    8,320.12x = 60,590,639.54
  5. Step 5: Solve for x
    x = 60,590,639.54/8,320.12
  6. Step 6: Final answer
    x = 7,282.43

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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.