Home / 10,939.89-15,097.02-5,971.89

Finding the Fourth Proportional to 10,939.89, 15,097.02 and 5,971.89

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Solution

The fourth proportional to 10,939.89, 15,097.02 and 5,971.89 is: 8,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.89 : 15,097.02 = 5,971.89 : x
  2. Step 2: Convert to fraction form
    10,939.89/15,097.02 = 5,971.89/x
  3. Step 3: Cross multiply
    10,939.89x = 15,097.02 × 5,971.89
  4. Step 4: Simplify right side
    10,939.89x = 90,157,742.77
  5. Step 5: Solve for x
    x = 90,157,742.77/10,939.89
  6. Step 6: Final answer
    x = 8,241.19

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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.