Home / 18,703.05-28,044.72-6,221.76

Finding the Fourth Proportional to 18,703.05, 28,044.72 and 6,221.76

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Solution

The fourth proportional to 18,703.05, 28,044.72 and 6,221.76 is: 9,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.05 : 28,044.72 = 6,221.76 : x
  2. Step 2: Convert to fraction form
    18,703.05/28,044.72 = 6,221.76/x
  3. Step 3: Cross multiply
    18,703.05x = 28,044.72 × 6,221.76
  4. Step 4: Simplify right side
    18,703.05x = 174,487,517.11
  5. Step 5: Solve for x
    x = 174,487,517.11/18,703.05
  6. Step 6: Final answer
    x = 9,329.36

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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.