Home / 12,006.08-18,001.42-4,990.96

Finding the Fourth Proportional to 12,006.08, 18,001.42 and 4,990.96

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Solution

The fourth proportional to 12,006.08, 18,001.42 and 4,990.96 is: 7,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.08 : 18,001.42 = 4,990.96 : x
  2. Step 2: Convert to fraction form
    12,006.08/18,001.42 = 4,990.96/x
  3. Step 3: Cross multiply
    12,006.08x = 18,001.42 × 4,990.96
  4. Step 4: Simplify right side
    12,006.08x = 89,844,367.16
  5. Step 5: Solve for x
    x = 89,844,367.16/12,006.08
  6. Step 6: Final answer
    x = 7,483.24

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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.