Home / 9,903.90-14,857.20-3,330.75

Finding the Fourth Proportional to 9,903.90, 14,857.20 and 3,330.75

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Solution

The fourth proportional to 9,903.90, 14,857.20 and 3,330.75 is: 4,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.90 : 14,857.20 = 3,330.75 : x
  2. Step 2: Convert to fraction form
    9,903.90/14,857.20 = 3,330.75/x
  3. Step 3: Cross multiply
    9,903.90x = 14,857.20 × 3,330.75
  4. Step 4: Simplify right side
    9,903.90x = 49,485,618.90
  5. Step 5: Solve for x
    x = 49,485,618.90/9,903.90
  6. Step 6: Final answer
    x = 4,996.58

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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.