Home / 16,115.79-22,240.67-9,042.06

Finding the Fourth Proportional to 16,115.79, 22,240.67 and 9,042.06

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Solution

The fourth proportional to 16,115.79, 22,240.67 and 9,042.06 is: 12,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,115.79 : 22,240.67 = 9,042.06 : x
  2. Step 2: Convert to fraction form
    16,115.79/22,240.67 = 9,042.06/x
  3. Step 3: Cross multiply
    16,115.79x = 22,240.67 × 9,042.06
  4. Step 4: Simplify right side
    16,115.79x = 201,101,472.58
  5. Step 5: Solve for x
    x = 201,101,472.58/16,115.79
  6. Step 6: Final answer
    x = 12,478.54

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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.