Home / 8,142.99-11,237.61-4,785.76

Finding the Fourth Proportional to 8,142.99, 11,237.61 and 4,785.76

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Solution

The fourth proportional to 8,142.99, 11,237.61 and 4,785.76 is: 6,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.99 : 11,237.61 = 4,785.76 : x
  2. Step 2: Convert to fraction form
    8,142.99/11,237.61 = 4,785.76/x
  3. Step 3: Cross multiply
    8,142.99x = 11,237.61 × 4,785.76
  4. Step 4: Simplify right side
    8,142.99x = 53,780,471.17
  5. Step 5: Solve for x
    x = 53,780,471.17/8,142.99
  6. Step 6: Final answer
    x = 6,604.51

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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.