Home / 11,421.70-17,118.84-5,877.66

Finding the Fourth Proportional to 11,421.70, 17,118.84 and 5,877.66

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Solution

The fourth proportional to 11,421.70, 17,118.84 and 5,877.66 is: 8,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.70 : 17,118.84 = 5,877.66 : x
  2. Step 2: Convert to fraction form
    11,421.70/17,118.84 = 5,877.66/x
  3. Step 3: Cross multiply
    11,421.70x = 17,118.84 × 5,877.66
  4. Step 4: Simplify right side
    11,421.70x = 100,618,721.11
  5. Step 5: Solve for x
    x = 100,618,721.11/11,421.70
  6. Step 6: Final answer
    x = 8,809.43

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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.