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Finding the Fourth Proportional to 11,201.87, 16,802.80 and 4,620.82

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Solution

The fourth proportional to 11,201.87, 16,802.80 and 4,620.82 is: 6,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.87 : 16,802.80 = 4,620.82 : x
  2. Step 2: Convert to fraction form
    11,201.87/16,802.80 = 4,620.82/x
  3. Step 3: Cross multiply
    11,201.87x = 16,802.80 × 4,620.82
  4. Step 4: Simplify right side
    11,201.87x = 77,642,660.74
  5. Step 5: Solve for x
    x = 77,642,660.74/11,201.87
  6. Step 6: Final answer
    x = 6,931.23

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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.