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Finding the Fourth Proportional to 11,250.40, 16,904.40 and 9,983.20

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Solution

The fourth proportional to 11,250.40, 16,904.40 and 9,983.20 is: 15,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,250.40 : 16,904.40 = 9,983.20 : x
  2. Step 2: Convert to fraction form
    11,250.40/16,904.40 = 9,983.20/x
  3. Step 3: Cross multiply
    11,250.40x = 16,904.40 × 9,983.20
  4. Step 4: Simplify right side
    11,250.40x = 168,760,006.08
  5. Step 5: Solve for x
    x = 168,760,006.08/11,250.40
  6. Step 6: Final answer
    x = 15,000.36

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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.