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Finding the Fourth Proportional to 11,293.96, 15,585.06 and 6,512.80

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Solution

The fourth proportional to 11,293.96, 15,585.06 and 6,512.80 is: 8,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.96 : 15,585.06 = 6,512.80 : x
  2. Step 2: Convert to fraction form
    11,293.96/15,585.06 = 6,512.80/x
  3. Step 3: Cross multiply
    11,293.96x = 15,585.06 × 6,512.80
  4. Step 4: Simplify right side
    11,293.96x = 101,502,378.77
  5. Step 5: Solve for x
    x = 101,502,378.77/11,293.96
  6. Step 6: Final answer
    x = 8,987.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.