Home / 11,139.76-16,696.68-11,016.64

Finding the Fourth Proportional to 11,139.76, 16,696.68 and 11,016.64

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Solution

The fourth proportional to 11,139.76, 16,696.68 and 11,016.64 is: 16,512.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.76 : 16,696.68 = 11,016.64 : x
  2. Step 2: Convert to fraction form
    11,139.76/16,696.68 = 11,016.64/x
  3. Step 3: Cross multiply
    11,139.76x = 16,696.68 × 11,016.64
  4. Step 4: Simplify right side
    11,139.76x = 183,941,312.76
  5. Step 5: Solve for x
    x = 183,941,312.76/11,139.76
  6. Step 6: Final answer
    x = 16,512.14

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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.