Home / 11,102.72-16,668.72-10,185.80

Finding the Fourth Proportional to 11,102.72, 16,668.72 and 10,185.80

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Solution

The fourth proportional to 11,102.72, 16,668.72 and 10,185.80 is: 15,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.72 : 16,668.72 = 10,185.80 : x
  2. Step 2: Convert to fraction form
    11,102.72/16,668.72 = 10,185.80/x
  3. Step 3: Cross multiply
    11,102.72x = 16,668.72 × 10,185.80
  4. Step 4: Simplify right side
    11,102.72x = 169,784,248.18
  5. Step 5: Solve for x
    x = 169,784,248.18/11,102.72
  6. Step 6: Final answer
    x = 15,292.13

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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.