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Finding the Fourth Proportional to 11,662.85, 17,500.35 and 5,089.70

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Solution

The fourth proportional to 11,662.85, 17,500.35 and 5,089.70 is: 7,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,662.85 : 17,500.35 = 5,089.70 : x
  2. Step 2: Convert to fraction form
    11,662.85/17,500.35 = 5,089.70/x
  3. Step 3: Cross multiply
    11,662.85x = 17,500.35 × 5,089.70
  4. Step 4: Simplify right side
    11,662.85x = 89,071,531.40
  5. Step 5: Solve for x
    x = 89,071,531.40/11,662.85
  6. Step 6: Final answer
    x = 7,637.20

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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.