Home / 18,821.61-25,952.55-12,006.54

Finding the Fourth Proportional to 18,821.61, 25,952.55 and 12,006.54

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Solution

The fourth proportional to 18,821.61, 25,952.55 and 12,006.54 is: 16,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.61 : 25,952.55 = 12,006.54 : x
  2. Step 2: Convert to fraction form
    18,821.61/25,952.55 = 12,006.54/x
  3. Step 3: Cross multiply
    18,821.61x = 25,952.55 × 12,006.54
  4. Step 4: Simplify right side
    18,821.61x = 311,600,329.68
  5. Step 5: Solve for x
    x = 311,600,329.68/18,821.61
  6. Step 6: Final answer
    x = 16,555.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.