Home / 8,540.20-11,785.32-4,814.20

Finding the Fourth Proportional to 8,540.20, 11,785.32 and 4,814.20

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Solution

The fourth proportional to 8,540.20, 11,785.32 and 4,814.20 is: 6,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.20 : 11,785.32 = 4,814.20 : x
  2. Step 2: Convert to fraction form
    8,540.20/11,785.32 = 4,814.20/x
  3. Step 3: Cross multiply
    8,540.20x = 11,785.32 × 4,814.20
  4. Step 4: Simplify right side
    8,540.20x = 56,736,887.54
  5. Step 5: Solve for x
    x = 56,736,887.54/8,540.20
  6. Step 6: Final answer
    x = 6,643.51

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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.