Home / 7,971.66-11,001.15-4,986.54

Finding the Fourth Proportional to 7,971.66, 11,001.15 and 4,986.54

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Solution

The fourth proportional to 7,971.66, 11,001.15 and 4,986.54 is: 6,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.66 : 11,001.15 = 4,986.54 : x
  2. Step 2: Convert to fraction form
    7,971.66/11,001.15 = 4,986.54/x
  3. Step 3: Cross multiply
    7,971.66x = 11,001.15 × 4,986.54
  4. Step 4: Simplify right side
    7,971.66x = 54,857,674.52
  5. Step 5: Solve for x
    x = 54,857,674.52/7,971.66
  6. Step 6: Final answer
    x = 6,881.59

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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.