Home / 8,860.30-13,290.48-4,178.80

Finding the Fourth Proportional to 8,860.30, 13,290.48 and 4,178.80

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Solution

The fourth proportional to 8,860.30, 13,290.48 and 4,178.80 is: 6,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.30 : 13,290.48 = 4,178.80 : x
  2. Step 2: Convert to fraction form
    8,860.30/13,290.48 = 4,178.80/x
  3. Step 3: Cross multiply
    8,860.30x = 13,290.48 × 4,178.80
  4. Step 4: Simplify right side
    8,860.30x = 55,538,257.82
  5. Step 5: Solve for x
    x = 55,538,257.82/8,860.30
  6. Step 6: Final answer
    x = 6,268.21

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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.