Home / 9,964.40-14,928.60-4,758.80

Finding the Fourth Proportional to 9,964.40, 14,928.60 and 4,758.80

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Solution

The fourth proportional to 9,964.40, 14,928.60 and 4,758.80 is: 7,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.40 : 14,928.60 = 4,758.80 : x
  2. Step 2: Convert to fraction form
    9,964.40/14,928.60 = 4,758.80/x
  3. Step 3: Cross multiply
    9,964.40x = 14,928.60 × 4,758.80
  4. Step 4: Simplify right side
    9,964.40x = 71,042,221.68
  5. Step 5: Solve for x
    x = 71,042,221.68/9,964.40
  6. Step 6: Final answer
    x = 7,129.60

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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.