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Finding the Fourth Proportional to 9,110.88, 12,572.21 and 5,077.55

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Solution

The fourth proportional to 9,110.88, 12,572.21 and 5,077.55 is: 7,006.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.88 : 12,572.21 = 5,077.55 : x
  2. Step 2: Convert to fraction form
    9,110.88/12,572.21 = 5,077.55/x
  3. Step 3: Cross multiply
    9,110.88x = 12,572.21 × 5,077.55
  4. Step 4: Simplify right side
    9,110.88x = 63,836,069.01
  5. Step 5: Solve for x
    x = 63,836,069.01/9,110.88
  6. Step 6: Final answer
    x = 7,006.58

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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.