Home / 12,006.40-17,998.68-4,210.96

Finding the Fourth Proportional to 12,006.40, 17,998.68 and 4,210.96

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Solution

The fourth proportional to 12,006.40, 17,998.68 and 4,210.96 is: 6,312.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.40 : 17,998.68 = 4,210.96 : x
  2. Step 2: Convert to fraction form
    12,006.40/17,998.68 = 4,210.96/x
  3. Step 3: Cross multiply
    12,006.40x = 17,998.68 × 4,210.96
  4. Step 4: Simplify right side
    12,006.40x = 75,791,721.53
  5. Step 5: Solve for x
    x = 75,791,721.53/12,006.40
  6. Step 6: Final answer
    x = 6,312.61

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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.