Home / 10,646.82-15,970.68-2,855.61

Finding the Fourth Proportional to 10,646.82, 15,970.68 and 2,855.61

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Solution

The fourth proportional to 10,646.82, 15,970.68 and 2,855.61 is: 4,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646.82 : 15,970.68 = 2,855.61 : x
  2. Step 2: Convert to fraction form
    10,646.82/15,970.68 = 2,855.61/x
  3. Step 3: Cross multiply
    10,646.82x = 15,970.68 × 2,855.61
  4. Step 4: Simplify right side
    10,646.82x = 45,606,033.51
  5. Step 5: Solve for x
    x = 45,606,033.51/10,646.82
  6. Step 6: Final answer
    x = 4,283.54

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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.