Home / 16,905.62-25,357.70-5,218.76

Finding the Fourth Proportional to 16,905.62, 25,357.70 and 5,218.76

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Solution

The fourth proportional to 16,905.62, 25,357.70 and 5,218.76 is: 7,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.62 : 25,357.70 = 5,218.76 : x
  2. Step 2: Convert to fraction form
    16,905.62/25,357.70 = 5,218.76/x
  3. Step 3: Cross multiply
    16,905.62x = 25,357.70 × 5,218.76
  4. Step 4: Simplify right side
    16,905.62x = 132,335,750.45
  5. Step 5: Solve for x
    x = 132,335,750.45/16,905.62
  6. Step 6: Final answer
    x = 7,827.91

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1.5x scale

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.