Home / 8,434.87-12,660.02-4,277.75

Finding the Fourth Proportional to 8,434.87, 12,660.02 and 4,277.75

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Solution

The fourth proportional to 8,434.87, 12,660.02 and 4,277.75 is: 6,420.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.87 : 12,660.02 = 4,277.75 : x
  2. Step 2: Convert to fraction form
    8,434.87/12,660.02 = 4,277.75/x
  3. Step 3: Cross multiply
    8,434.87x = 12,660.02 × 4,277.75
  4. Step 4: Simplify right side
    8,434.87x = 54,156,400.56
  5. Step 5: Solve for x
    x = 54,156,400.56/8,434.87
  6. Step 6: Final answer
    x = 6,420.54

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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.