Home / 8,179.16-11,287.32-4,642.40

Finding the Fourth Proportional to 8,179.16, 11,287.32 and 4,642.40

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Solution

The fourth proportional to 8,179.16, 11,287.32 and 4,642.40 is: 6,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.16 : 11,287.32 = 4,642.40 : x
  2. Step 2: Convert to fraction form
    8,179.16/11,287.32 = 4,642.40/x
  3. Step 3: Cross multiply
    8,179.16x = 11,287.32 × 4,642.40
  4. Step 4: Simplify right side
    8,179.16x = 52,400,254.37
  5. Step 5: Solve for x
    x = 52,400,254.37/8,179.16
  6. Step 6: Final answer
    x = 6,406.56

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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.