Home / 16,143.12-22,285.80-11,166.48

Finding the Fourth Proportional to 16,143.12, 22,285.80 and 11,166.48

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Solution

The fourth proportional to 16,143.12, 22,285.80 and 11,166.48 is: 15,415.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,143.12 : 22,285.80 = 11,166.48 : x
  2. Step 2: Convert to fraction form
    16,143.12/22,285.80 = 11,166.48/x
  3. Step 3: Cross multiply
    16,143.12x = 22,285.80 × 11,166.48
  4. Step 4: Simplify right side
    16,143.12x = 248,853,939.98
  5. Step 5: Solve for x
    x = 248,853,939.98/16,143.12
  6. Step 6: Final answer
    x = 15,415.48

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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.