Home / 8,772.12-12,105.53-4,738.95

Finding the Fourth Proportional to 8,772.12, 12,105.53 and 4,738.95

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Solution

The fourth proportional to 8,772.12, 12,105.53 and 4,738.95 is: 6,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.12 : 12,105.53 = 4,738.95 : x
  2. Step 2: Convert to fraction form
    8,772.12/12,105.53 = 4,738.95/x
  3. Step 3: Cross multiply
    8,772.12x = 12,105.53 × 4,738.95
  4. Step 4: Simplify right side
    8,772.12x = 57,367,495.47
  5. Step 5: Solve for x
    x = 57,367,495.47/8,772.12
  6. Step 6: Final answer
    x = 6,539.75

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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.