Home / 7,217.80-10,826.70-4,447.60

Finding the Fourth Proportional to 7,217.80, 10,826.70 and 4,447.60

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Solution

The fourth proportional to 7,217.80, 10,826.70 and 4,447.60 is: 6,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.80 : 10,826.70 = 4,447.60 : x
  2. Step 2: Convert to fraction form
    7,217.80/10,826.70 = 4,447.60/x
  3. Step 3: Cross multiply
    7,217.80x = 10,826.70 × 4,447.60
  4. Step 4: Simplify right side
    7,217.80x = 48,152,830.92
  5. Step 5: Solve for x
    x = 48,152,830.92/7,217.80
  6. Step 6: Final answer
    x = 6,671.40

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Similar ratio
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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.