Home / 9,309.28-13,968.72-4,118.80

Finding the Fourth Proportional to 9,309.28, 13,968.72 and 4,118.80

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Solution

The fourth proportional to 9,309.28, 13,968.72 and 4,118.80 is: 6,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.28 : 13,968.72 = 4,118.80 : x
  2. Step 2: Convert to fraction form
    9,309.28/13,968.72 = 4,118.80/x
  3. Step 3: Cross multiply
    9,309.28x = 13,968.72 × 4,118.80
  4. Step 4: Simplify right side
    9,309.28x = 57,534,363.94
  5. Step 5: Solve for x
    x = 57,534,363.94/9,309.28
  6. Step 6: Final answer
    x = 6,180.32

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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.