Home / 13,090.93-19,640.50-4,331.99

Finding the Fourth Proportional to 13,090.93, 19,640.50 and 4,331.99

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Solution

The fourth proportional to 13,090.93, 19,640.50 and 4,331.99 is: 6,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.93 : 19,640.50 = 4,331.99 : x
  2. Step 2: Convert to fraction form
    13,090.93/19,640.50 = 4,331.99/x
  3. Step 3: Cross multiply
    13,090.93x = 19,640.50 × 4,331.99
  4. Step 4: Simplify right side
    13,090.93x = 85,082,487.87
  5. Step 5: Solve for x
    x = 85,082,487.87/13,090.93
  6. Step 6: Final answer
    x = 6,499.35

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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.