Home / 13,490.08-20,231.16-4,723.36

Finding the Fourth Proportional to 13,490.08, 20,231.16 and 4,723.36

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Solution

The fourth proportional to 13,490.08, 20,231.16 and 4,723.36 is: 7,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.08 : 20,231.16 = 4,723.36 : x
  2. Step 2: Convert to fraction form
    13,490.08/20,231.16 = 4,723.36/x
  3. Step 3: Cross multiply
    13,490.08x = 20,231.16 × 4,723.36
  4. Step 4: Simplify right side
    13,490.08x = 95,559,051.90
  5. Step 5: Solve for x
    x = 95,559,051.90/13,490.08
  6. Step 6: Final answer
    x = 7,083.65

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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.