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Finding the Fourth Proportional to 11,370.30, 17,051.80 and 9,912.30

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Solution

The fourth proportional to 11,370.30, 17,051.80 and 9,912.30 is: 14,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,370.30 : 17,051.80 = 9,912.30 : x
  2. Step 2: Convert to fraction form
    11,370.30/17,051.80 = 9,912.30/x
  3. Step 3: Cross multiply
    11,370.30x = 17,051.80 × 9,912.30
  4. Step 4: Simplify right side
    11,370.30x = 169,022,557.14
  5. Step 5: Solve for x
    x = 169,022,557.14/11,370.30
  6. Step 6: Final answer
    x = 14,865.27

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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.