Home / 11,011.58-16,521.42-5,091.32

Finding the Fourth Proportional to 11,011.58, 16,521.42 and 5,091.32

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Solution

The fourth proportional to 11,011.58, 16,521.42 and 5,091.32 is: 7,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.58 : 16,521.42 = 5,091.32 : x
  2. Step 2: Convert to fraction form
    11,011.58/16,521.42 = 5,091.32/x
  3. Step 3: Cross multiply
    11,011.58x = 16,521.42 × 5,091.32
  4. Step 4: Simplify right side
    11,011.58x = 84,115,836.07
  5. Step 5: Solve for x
    x = 84,115,836.07/11,011.58
  6. Step 6: Final answer
    x = 7,638.85

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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.