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Finding the Fourth Proportional to 8,991.56, 13,487.40 and 2,751.68

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Solution

The fourth proportional to 8,991.56, 13,487.40 and 2,751.68 is: 4,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.56 : 13,487.40 = 2,751.68 : x
  2. Step 2: Convert to fraction form
    8,991.56/13,487.40 = 2,751.68/x
  3. Step 3: Cross multiply
    8,991.56x = 13,487.40 × 2,751.68
  4. Step 4: Simplify right side
    8,991.56x = 37,113,008.83
  5. Step 5: Solve for x
    x = 37,113,008.83/8,991.56
  6. Step 6: Final answer
    x = 4,127.54

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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.