Home / 18,989.23-28,501.72-9,635.96

Finding the Fourth Proportional to 18,989.23, 28,501.72 and 9,635.96

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Solution

The fourth proportional to 18,989.23, 28,501.72 and 9,635.96 is: 14,463.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.23 : 28,501.72 = 9,635.96 : x
  2. Step 2: Convert to fraction form
    18,989.23/28,501.72 = 9,635.96/x
  3. Step 3: Cross multiply
    18,989.23x = 28,501.72 × 9,635.96
  4. Step 4: Simplify right side
    18,989.23x = 274,641,481.02
  5. Step 5: Solve for x
    x = 274,641,481.02/18,989.23
  6. Step 6: Final answer
    x = 14,463.01

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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.