Home / 7,911.29-11,855.21-3,225.58

Finding the Fourth Proportional to 7,911.29, 11,855.21 and 3,225.58

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Solution

The fourth proportional to 7,911.29, 11,855.21 and 3,225.58 is: 4,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.29 : 11,855.21 = 3,225.58 : x
  2. Step 2: Convert to fraction form
    7,911.29/11,855.21 = 3,225.58/x
  3. Step 3: Cross multiply
    7,911.29x = 11,855.21 × 3,225.58
  4. Step 4: Simplify right side
    7,911.29x = 38,239,882.51
  5. Step 5: Solve for x
    x = 38,239,882.51/7,911.29
  6. Step 6: Final answer
    x = 4,833.58

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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.