Home / 21,668.76-32,496.70-9,188.60

Finding the Fourth Proportional to 21,668.76, 32,496.70 and 9,188.60

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Solution

The fourth proportional to 21,668.76, 32,496.70 and 9,188.60 is: 13,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.76 : 32,496.70 = 9,188.60 : x
  2. Step 2: Convert to fraction form
    21,668.76/32,496.70 = 9,188.60/x
  3. Step 3: Cross multiply
    21,668.76x = 32,496.70 × 9,188.60
  4. Step 4: Simplify right side
    21,668.76x = 298,599,177.62
  5. Step 5: Solve for x
    x = 298,599,177.62/21,668.76
  6. Step 6: Final answer
    x = 13,780.17

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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.