Home / 7,875.46-11,814-3,493.90

Finding the Fourth Proportional to 7,875.46, 11,814 and 3,493.90

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Solution

The fourth proportional to 7,875.46, 11,814 and 3,493.90 is: 5,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.46 : 11,814 = 3,493.90 : x
  2. Step 2: Convert to fraction form
    7,875.46/11,814 = 3,493.90/x
  3. Step 3: Cross multiply
    7,875.46x = 11,814 × 3,493.90
  4. Step 4: Simplify right side
    7,875.46x = 41,276,934.60
  5. Step 5: Solve for x
    x = 41,276,934.60/7,875.46
  6. Step 6: Final answer
    x = 5,241.21

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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.