Home / 12,991.28-19,489.80-6,062

Finding the Fourth Proportional to 12,991.28, 19,489.80 and 6,062

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Solution

The fourth proportional to 12,991.28, 19,489.80 and 6,062 is: 9,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,991.28 : 19,489.80 = 6,062 : x
  2. Step 2: Convert to fraction form
    12,991.28/19,489.80 = 6,062/x
  3. Step 3: Cross multiply
    12,991.28x = 19,489.80 × 6,062
  4. Step 4: Simplify right side
    12,991.28x = 118,147,167.60
  5. Step 5: Solve for x
    x = 118,147,167.60/12,991.28
  6. Step 6: Final answer
    x = 9,094.34

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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.