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Finding the Fourth Proportional to 11,239.30, 16,858.95 and 9,052.30

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Solution

The fourth proportional to 11,239.30, 16,858.95 and 9,052.30 is: 13,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.30 : 16,858.95 = 9,052.30 : x
  2. Step 2: Convert to fraction form
    11,239.30/16,858.95 = 9,052.30/x
  3. Step 3: Cross multiply
    11,239.30x = 16,858.95 × 9,052.30
  4. Step 4: Simplify right side
    11,239.30x = 152,612,273.09
  5. Step 5: Solve for x
    x = 152,612,273.09/11,239.30
  6. Step 6: Final answer
    x = 13,578.45

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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.