Home / 8,520.92-12,765.28-4,825.80

Finding the Fourth Proportional to 8,520.92, 12,765.28 and 4,825.80

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Solution

The fourth proportional to 8,520.92, 12,765.28 and 4,825.80 is: 7,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.92 : 12,765.28 = 4,825.80 : x
  2. Step 2: Convert to fraction form
    8,520.92/12,765.28 = 4,825.80/x
  3. Step 3: Cross multiply
    8,520.92x = 12,765.28 × 4,825.80
  4. Step 4: Simplify right side
    8,520.92x = 61,602,688.22
  5. Step 5: Solve for x
    x = 61,602,688.22/8,520.92
  6. Step 6: Final answer
    x = 7,229.58

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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.