Home / 11,416.30-17,112.75-7,259.38

Finding the Fourth Proportional to 11,416.30, 17,112.75 and 7,259.38

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Solution

The fourth proportional to 11,416.30, 17,112.75 and 7,259.38 is: 10,881.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.30 : 17,112.75 = 7,259.38 : x
  2. Step 2: Convert to fraction form
    11,416.30/17,112.75 = 7,259.38/x
  3. Step 3: Cross multiply
    11,416.30x = 17,112.75 × 7,259.38
  4. Step 4: Simplify right side
    11,416.30x = 124,227,955.10
  5. Step 5: Solve for x
    x = 124,227,955.10/11,416.30
  6. Step 6: Final answer
    x = 10,881.63

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1.5x scale

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.