Home / 18,770.50-28,156.11-7,089.22

Finding the Fourth Proportional to 18,770.50, 28,156.11 and 7,089.22

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Solution

The fourth proportional to 18,770.50, 28,156.11 and 7,089.22 is: 10,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.50 : 28,156.11 = 7,089.22 : x
  2. Step 2: Convert to fraction form
    18,770.50/28,156.11 = 7,089.22/x
  3. Step 3: Cross multiply
    18,770.50x = 28,156.11 × 7,089.22
  4. Step 4: Simplify right side
    18,770.50x = 199,604,858.13
  5. Step 5: Solve for x
    x = 199,604,858.13/18,770.50
  6. Step 6: Final answer
    x = 10,633.97

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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.