Home / 11,749.89-16,214.81-7,272.75

Finding the Fourth Proportional to 11,749.89, 16,214.81 and 7,272.75

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Solution

The fourth proportional to 11,749.89, 16,214.81 and 7,272.75 is: 10,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.89 : 16,214.81 = 7,272.75 : x
  2. Step 2: Convert to fraction form
    11,749.89/16,214.81 = 7,272.75/x
  3. Step 3: Cross multiply
    11,749.89x = 16,214.81 × 7,272.75
  4. Step 4: Simplify right side
    11,749.89x = 117,926,223.06
  5. Step 5: Solve for x
    x = 117,926,223.06/11,749.89
  6. Step 6: Final answer
    x = 10,036.37

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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.