Home / 11,550.40-17,312-5,308.80

Finding the Fourth Proportional to 11,550.40, 17,312 and 5,308.80

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Solution

The fourth proportional to 11,550.40, 17,312 and 5,308.80 is: 7,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,550.40 : 17,312 = 5,308.80 : x
  2. Step 2: Convert to fraction form
    11,550.40/17,312 = 5,308.80/x
  3. Step 3: Cross multiply
    11,550.40x = 17,312 × 5,308.80
  4. Step 4: Simplify right side
    11,550.40x = 91,905,945.60
  5. Step 5: Solve for x
    x = 91,905,945.60/11,550.40
  6. Step 6: Final answer
    x = 7,956.95

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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.