Home / 11,430.24-15,773.04-7,239.84

Finding the Fourth Proportional to 11,430.24, 15,773.04 and 7,239.84

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Solution

The fourth proportional to 11,430.24, 15,773.04 and 7,239.84 is: 9,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.24 : 15,773.04 = 7,239.84 : x
  2. Step 2: Convert to fraction form
    11,430.24/15,773.04 = 7,239.84/x
  3. Step 3: Cross multiply
    11,430.24x = 15,773.04 × 7,239.84
  4. Step 4: Simplify right side
    11,430.24x = 114,194,285.91
  5. Step 5: Solve for x
    x = 114,194,285.91/11,430.24
  6. Step 6: Final answer
    x = 9,990.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.