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Finding the Fourth Proportional to 11,203, 16,823.70 and 10,619.32

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Solution

The fourth proportional to 11,203, 16,823.70 and 10,619.32 is: 15,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203 : 16,823.70 = 10,619.32 : x
  2. Step 2: Convert to fraction form
    11,203/16,823.70 = 10,619.32/x
  3. Step 3: Cross multiply
    11,203x = 16,823.70 × 10,619.32
  4. Step 4: Simplify right side
    11,203x = 178,656,253.88
  5. Step 5: Solve for x
    x = 178,656,253.88/11,203
  6. Step 6: Final answer
    x = 15,947.18

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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.