Home / 13,089.12-19,623.96-4,199.28

Finding the Fourth Proportional to 13,089.12, 19,623.96 and 4,199.28

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Solution

The fourth proportional to 13,089.12, 19,623.96 and 4,199.28 is: 6,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.12 : 19,623.96 = 4,199.28 : x
  2. Step 2: Convert to fraction form
    13,089.12/19,623.96 = 4,199.28/x
  3. Step 3: Cross multiply
    13,089.12x = 19,623.96 × 4,199.28
  4. Step 4: Simplify right side
    13,089.12x = 82,406,502.75
  5. Step 5: Solve for x
    x = 82,406,502.75/13,089.12
  6. Step 6: Final answer
    x = 6,295.80

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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.