Home / 12,006.92-18,007.32-4,988.99

Finding the Fourth Proportional to 12,006.92, 18,007.32 and 4,988.99

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Solution

The fourth proportional to 12,006.92, 18,007.32 and 4,988.99 is: 7,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.92 : 18,007.32 = 4,988.99 : x
  2. Step 2: Convert to fraction form
    12,006.92/18,007.32 = 4,988.99/x
  3. Step 3: Cross multiply
    12,006.92x = 18,007.32 × 4,988.99
  4. Step 4: Simplify right side
    12,006.92x = 89,838,339.41
  5. Step 5: Solve for x
    x = 89,838,339.41/12,006.92
  6. Step 6: Final answer
    x = 7,482.21

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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.