Home / 10,917.88-16,377.85-3,020.08

Finding the Fourth Proportional to 10,917.88, 16,377.85 and 3,020.08

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Solution

The fourth proportional to 10,917.88, 16,377.85 and 3,020.08 is: 4,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.88 : 16,377.85 = 3,020.08 : x
  2. Step 2: Convert to fraction form
    10,917.88/16,377.85 = 3,020.08/x
  3. Step 3: Cross multiply
    10,917.88x = 16,377.85 × 3,020.08
  4. Step 4: Simplify right side
    10,917.88x = 49,462,417.23
  5. Step 5: Solve for x
    x = 49,462,417.23/10,917.88
  6. Step 6: Final answer
    x = 4,530.40

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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.