Home / 14,972.06-20,661.94-8,166.45

Finding the Fourth Proportional to 14,972.06, 20,661.94 and 8,166.45

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Solution

The fourth proportional to 14,972.06, 20,661.94 and 8,166.45 is: 11,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.06 : 20,661.94 = 8,166.45 : x
  2. Step 2: Convert to fraction form
    14,972.06/20,661.94 = 8,166.45/x
  3. Step 3: Cross multiply
    14,972.06x = 20,661.94 × 8,166.45
  4. Step 4: Simplify right side
    14,972.06x = 168,734,699.91
  5. Step 5: Solve for x
    x = 168,734,699.91/14,972.06
  6. Step 6: Final answer
    x = 11,269.97

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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.