Home / 8,178.98-11,287.24-4,642.34

Finding the Fourth Proportional to 8,178.98, 11,287.24 and 4,642.34

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Solution

The fourth proportional to 8,178.98, 11,287.24 and 4,642.34 is: 6,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.98 : 11,287.24 = 4,642.34 : x
  2. Step 2: Convert to fraction form
    8,178.98/11,287.24 = 4,642.34/x
  3. Step 3: Cross multiply
    8,178.98x = 11,287.24 × 4,642.34
  4. Step 4: Simplify right side
    8,178.98x = 52,399,205.74
  5. Step 5: Solve for x
    x = 52,399,205.74/8,178.98
  6. Step 6: Final answer
    x = 6,406.57

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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.