Home / 12,007.96-18,008.28-4,214.92

Finding the Fourth Proportional to 12,007.96, 18,008.28 and 4,214.92

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Solution

The fourth proportional to 12,007.96, 18,008.28 and 4,214.92 is: 6,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.96 : 18,008.28 = 4,214.92 : x
  2. Step 2: Convert to fraction form
    12,007.96/18,008.28 = 4,214.92/x
  3. Step 3: Cross multiply
    12,007.96x = 18,008.28 × 4,214.92
  4. Step 4: Simplify right side
    12,007.96x = 75,903,459.54
  5. Step 5: Solve for x
    x = 75,903,459.54/12,007.96
  6. Step 6: Final answer
    x = 6,321.10

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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.