Home / 9,976.75-14,965.20-4,428.60

Finding the Fourth Proportional to 9,976.75, 14,965.20 and 4,428.60

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Solution

The fourth proportional to 9,976.75, 14,965.20 and 4,428.60 is: 6,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,976.75 : 14,965.20 = 4,428.60 : x
  2. Step 2: Convert to fraction form
    9,976.75/14,965.20 = 4,428.60/x
  3. Step 3: Cross multiply
    9,976.75x = 14,965.20 × 4,428.60
  4. Step 4: Simplify right side
    9,976.75x = 66,274,922.13
  5. Step 5: Solve for x
    x = 66,274,922.13/9,976.75
  6. Step 6: Final answer
    x = 6,642.94

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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.