Home / 11,878.79-17,815.68-4,483.08

Finding the Fourth Proportional to 11,878.79, 17,815.68 and 4,483.08

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Solution

The fourth proportional to 11,878.79, 17,815.68 and 4,483.08 is: 6,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.79 : 17,815.68 = 4,483.08 : x
  2. Step 2: Convert to fraction form
    11,878.79/17,815.68 = 4,483.08/x
  3. Step 3: Cross multiply
    11,878.79x = 17,815.68 × 4,483.08
  4. Step 4: Simplify right side
    11,878.79x = 79,869,118.69
  5. Step 5: Solve for x
    x = 79,869,118.69/11,878.79
  6. Step 6: Final answer
    x = 6,723.68

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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.