Home / 11,243.79-15,515.75-6,207.89

Finding the Fourth Proportional to 11,243.79, 15,515.75 and 6,207.89

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Solution

The fourth proportional to 11,243.79, 15,515.75 and 6,207.89 is: 8,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.79 : 15,515.75 = 6,207.89 : x
  2. Step 2: Convert to fraction form
    11,243.79/15,515.75 = 6,207.89/x
  3. Step 3: Cross multiply
    11,243.79x = 15,515.75 × 6,207.89
  4. Step 4: Simplify right side
    11,243.79x = 96,319,991.69
  5. Step 5: Solve for x
    x = 96,319,991.69/11,243.79
  6. Step 6: Final answer
    x = 8,566.51

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1.5x scale

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.