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Finding the Fourth Proportional to 11,315.10, 17,009.10 and 8,050.80

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Solution

The fourth proportional to 11,315.10, 17,009.10 and 8,050.80 is: 12,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.10 : 17,009.10 = 8,050.80 : x
  2. Step 2: Convert to fraction form
    11,315.10/17,009.10 = 8,050.80/x
  3. Step 3: Cross multiply
    11,315.10x = 17,009.10 × 8,050.80
  4. Step 4: Simplify right side
    11,315.10x = 136,936,862.28
  5. Step 5: Solve for x
    x = 136,936,862.28/11,315.10
  6. Step 6: Final answer
    x = 12,102.13

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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.